Indexable Head Indexable Head T E B SEC-MultiDrill SMD typeIndexable Head Indexable Head Indexable Head MB Type MEL Type Type MTL Indexable Head Indexable Head Indexable Head MB Type

MELTypeType

MTLIndexable HeadIndexable Head Indexable Head

MBType

� Stocked sizesφ12.0~φ42.0mm (MTL type)φ12.0~φ30.5mm (MEL type)φ24.5~φ26.7mm (MB type)

� MB type drill heads also utilize the next generation DEX-Coat

� Double the tool life of conventional brazed drills !

� MTL/MEL type drill heads can be use with M/L/D type drill

holders (3D/5D/8D)

� MB type drill heads for Structural Steel uses special B3 type

drill holders (3D)

“SEC : Steady & Easy Clamp” is the generic code for our indexable tools

New Large Diameter MTL Type Drill Heads !!

Diameter Range φ31.0 ~ φ42.5mm Are Stocked !!

Tooling News No. E435

New Indexable Head Drill, The Ultimate In Low Cost Drilling!

SEC-MultiDrill SMD type

Drill Head Selection For Various Applications

Drill Heads Can Be Regrind

2 3

SEC-MultiDrillSMD type MEL

TypeTypeMTL

Indexable HeadIndexable Head Indexable Head

MBType

MELTypeType


MBType

MELTypeType


MBType

0 0.2 0.4 0.6 0.8 1.0 1.2

Feedrate at which breakage occurs, f (mm/rev)

Brazed type drill

SEC-MultiDrill MTL type

18.10

18.05

18.00

17.95

0 200 400 600 800 1000

120

100

80

60

40

20

0

100%

50%

0

← →

TiCNTiN

TiAlN

TiSiN

30

40

50

20～～

DEX Coat (ACX70)

Conventional coating (ACZ70S) DEX Coat

� Characteristics Of The Next Generation Coating : DEX COATSumitomo Electric Hardmetal’s next generation drill coating utilizes the latest nano-coatingtechnology to provide more than double the tool life of conventional coatings.� Inclusion of Silicon and Chrome greatly improve wear, thermal and adhesion resistance.� New super multi-layered structure offers significant improvements to chipping resistance (coating strength).

� Coating Structure � Coating Characteristics

Coa

ting

Har

dnes

s (G

Pa)

Poor Chipping Resistance Good

World’s first coating design that is made from combiningalternate layers of super multi-layered coating substrates.

SEM Profile

TiAlCr basedSuper multi-layered coating

TiSi basedSuper multi-layered coating

� Drastic Reduction of Rake Face Wear

Work material : S50CCutting conditions : Vc=80m/min, f=0.25mm/rev Hole depth=38mm, WET Total cutting length : 32.8m

� Drilling Precision

SEC-MultiDrill MTL typeCompetitor ACompetitor BBrazed Drill

SEC-MultiDrill MTL type : Normal Wear

After drilling 900 holes (about 34m)


Competitor A : Large Wear

Competitor B :Edge Chipping


Work material : S50C (Drill diameter : φ18.0mm)Cutting conditions : Vc=70m/min, f=0.25mm/rev Hole depth=38mm (through), Water soluble

Hol

e S

ize

(mm

)

Number of Holes

� Drill Strength

� Durability comparison at maximum feedrate

Work material : S50CDrill diameter : φ16.0mmCutting conditions : Vc=80m/min, Hole depth=38mm

� Tool Life and Cost Comparison� Tool Life Comparison � Cost Comparison � Conclusion

� Workpiece Example

Num

ber o

f Wor

kpie

ces

Drill tolerance andtool life are relativelylower after regrinding

SEC-MultiDrillMTL type

Brazed Drill SEC-MultiDrillMTL type

Brazed Drill

Holder

Cost Reduction !

Tool

ing

Cos

t

10 Drill Heads

New Drill

New Drill

New Drill

New Drill

New Drill

4 x regrind

4 x regrind

4 x regrind

4 x regrind

4 x regrind For regrinding purpose, brazed drills are used only up to 50~70% of its actualtool life potential.SEC-MultiDrill MTL type isused up to 100%.

SEC-MultiDrill MTL type offer : Double the tool life of brazed drills ! Tool change time is shortened !

Hole size : φ18.0mm, Depth : 50mm

SEC-MultiDrill MTL typeInsert : SMDT1800MTLHolder : SMDH180MWork : Machine component (S50C) WET

Special grade and coating Without regrinding considerations, tool isused until maximum wear permitted.

Double the tool life !

Indexable type drill with exchangeable head, which has a radial serration design, for high precision and strength.An exchangeable drill head provides a new cutting edge, higher productivity and cost efficiency with easy tool management. Regrinding allowance of 1.5mm to 3.0mm makes further tool cost reductions possible.

� General Features

Front screw clamp design

MultiDrill design +Special coated carbide

Oil holes are directed at cutting lip

Assembly

Radial serration provides steadyand precise clamping

Specially treated body for high wear and rust resistance

Head Holder (L/D) Application øDc Range Icon

MTL type

M type (3D)

GeneralSteel

ø12.0~ø42.5

MELTypeType


MBType

L type (5D) ø12.0~ø42.5

D type (8D) ø13.5~ø42.5

MEL type

M type (3D)SUSSSFC

ø12.0~ø30.5

MELTypeType


MBType

L type (5D) ø12.0~ø30.5

D type (8D) ø13.5~ø30.5

MB type B3 type (3D) StructuralSteel ø24.5~ø26.7MEL

TypeTypeMTL


MBType

n Series Range

Head

Holder

2 3


TypeTypeMTL


MBType

MELTypeType


MBType

MTL type Suitable for high efficiency drilling of General SteelX-type Thinning DEX Coat

Web thinning for excellent centering

Large edge treatment

Strong peripheral cutting edge

3,000

2,500

2,000

1,500

1,000

500

0

MEL type Specially for hard-to-cut metals such as Stainless Steel Soft Steel, Grey Cast Iron and low rigidity setupsDEX CoatOverlap-type

Thinning Large thinning angle

Small edge treatment

Sharp peripheral cutting edge

� Excellent cutting edge design for Stainless Steel and Soft SteelLarge thinning angle prevents breakage at the convex R-profile portion, particularly when drilling soft steel and it also reduces breakages caused by adhesion when drilling stainless steel.

� Improved chipping resistance around the hole openings of Cast IronBetter edge sharpness at the peripheral edge prevents chipping around the hole openingswhen drilling Cast Iron.

� Application Examples (MEL type)

MEL type (Drilling length 15m) Competitor (Drilling length 11m)

SEC-MultiDrill MEL type with excellent centering, is able to drill 15m without any edge chipping or visible rifle marks.

Competitor’s indexable drill exhibited poor centering with visible rifle marks.The drill point chipped after 11m.

Work material : SUS304 Drill size : φ14mm x 5DConditions : Vc = 60m/min, f = 0.15mm/rev Coolant : Emulsion type

� Stable Drilling On Low Rigidity Setups � Achieving stable and long tool life even with low rigidity work, jig and machine.MEL type : Output 2,000pcs

Smooth chip form. Chips with multiple straight edges.

MTL type : Output 676pcs

Work material : S48C (Axel component) Drill diameter : φ28mm Machine : Vertical M/C (BT40) Conditions : Vc = 80m/min, f = 0.23mm/rev, depth 30mm (blind hole), WET

100

120

140

160

180 200

190

180

170

160

170pcs

185pcs

100%～～～～ 0

2,000

4,000

6,000 3.3x Tool Life

1,800pcs

6,000pcs

100

110

120

130

140

500

1,000

1,500

2,000

0

700pcs

1,600pcs

129%

～～

� Application Examples (MTL type)Improved tool life andefficiency

Part name : Housing Work material : S20CDrill size : φ15mm x 5DConditions : Vc = 107m/min f = 0.3mm/revHole depth : 32mm x 12 holes

Efficiency(%) Performance

ComparisonTool LifeDrilling Efficiency

Tool Life(pcs)


Competitor’sIndexable Drill

140%

Tool LifeComparison

3.3 times huge tool life improvement Part name : Support bracket Work material : S45CDrill size : φ20mm x 3DConditions : Vc = 98m/min f = 0.18mm/revHole depth : 17mm


Competitor’sBrazed Drill

Tool Life(pcs)

Work : Hub (S55C equivalent)Hole diameter : φ14.0Hole depth : 10mm (through hole)Drilling position : 4 holes Coolant : Emulsion (external)

+ 0.027

Workpiece image

Efficiency(%)

Performance Comparison Tool Life Efficiency

Tool Life(pcs)

2.3x Tool Life

100%SEC-MultiDrill MTL type

Competitor’sSolid Drill

SEC-MultiDrill MEL type

Competitor’s Solid Drill

Condition : Vc = 60m/min f = 0.3mm/rev (Vf = 409mm/min)Tool Life : 1,600pcs- Work hardening is minimal with stable dimensional accuracy. Able to achieve 1.3 times better efficiency with 2.3 times better tool life as compared to previous drill.

Condition : Vc = 70m/min f = 0.2mm/rev (Vf = 318mm/min)Tool Life : 700pcs- The internal wall of the drilled hole was found to have work hardened, as such, the solid drill could not be use beyond 3 times regrinding and recoating.

� Achieving Drastic Reduction In Cutting Resistance � MEL type exhibits 25% less thrust force as compared to MTL type!

Thru

st F

orce

(N)

MEL typeMTL type

Work Material : S50CDrill diameter : φ14mmConditions : Vc = 80m/min

f = 0.15 f = 0.20 f = 0.25

Sharper cutting edges with overlap thinning significantly reduce thrust force and improve chip control, allowing stable drilling in low rigidity set ups.

Feedrate, f (mm/rev)

n Recommended Cutting Conditions (MTL type / MEL type) Vc: Cutting Speed (m/min), f: Feedrate (mm/rev)

Work Soft Steel(~250HB)

General Steel(250~320HB)

Hardened Steel(45HRC)

Stainless Steel(~200HB) Grey Cast Iron Ductile Cast Iron Aluminum Alloys*

Recommended Head MEL type MTL type / MEL type MTL type MEL type MTL type / MEL type MTL type / MEL type MEL typeDrill DiameterøDc (mm) Cond. min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max

~ ø16.0vc

80-100-120(50-70-80)

70-90-110(50-70-80)

50-60-80(40-50-60)

50-60-70(40-50-60)

50-80-90(40-60-80)

50-70-80(40-60-80) 200-240-260

f 0.15-0.20-0.35 0.15-0.20-0.30 0.10-0.15-0.20 0.10-0.15-0.20 0.20-0.25-0.30 0.20-0.25-0.30 0.35-0.45-0.55

~ ø20.0vc

80-100-120(50-70-80)

70-90-110(50-70-80)

60-70-80(40-50-60)

50-60-70(40-50-60)

70-90-100(50-70-90)

60-80-90(50-70-80) 200-240-260

f 0.15-0.25-0.35 0.15-0.25-0.35 0.15-0.20-0.25 0.15-0.20-0.25 0.25-0.30-0.35 0.20-0.25-0.35 0.40-0.50-0.60

~ ø30.8vc

80-110-130(60-80-90)

80-100-130(60-80-90)

70-80-90(40-50-60)

60-70-80(50-60-70)

80-100-110(60-80-100)

70-90-100(50-70-80) 220-260-280

f 0.20-0.30-0.35 0.20-0.25-0.35 0.15-0.20-0.25 0.15-0.20-0.25 0.30-0.35-0.45 0.25-0.30-0.35 0.45-0.55-0.65Note : Where machine and work clamp rigidity are good, conditions may be increased up to the maximum range. For 8xD drills, please use cutting speeds stated within the ( ). Before drilling 8xD holes, it is advisable to make a guide hole of similar diameter.

* Inquire about drills designed specifically for Aluminum Alloys

4 5

SEC-MultiDrillSMD type (Large Diameters) MEL

TypeTypeMTL


MBType

X-type ThinningX-type Thinning

Reduces drift at the pointof drill engagement

Designed to handle low machineand clamping rigidity conditions

Aimed at reducing thrust forcesunder heavy drilling conditionsLarge Thinning Angle

Edge Treatment ExclusivelyFor Large Diameter Drills

Prevents unexpected breakage whenworking with expensive materials

Robust Substrate

Improved chip management forhighly malleable materials

Large Helix Angle Design

Work material : SM490 (Base substrate for construction use)Drill size : φ33.0 x 5DConditions : Vc=120m/min, f=0.25mm/revCoolant : Emulsion type

Stable even when drilling stacked platesHigh hole accuracy even with large diameters

10,000

8,000

6,000

4,000

2,000

0 5 10 15 20 25

φ33.15

φ32.85Entrance Middle Exit

φ32.90

φ32.95

φ33.00

φ33.05

φ33.10 ❶ ②

❶②

Good Chip Control

Entrance

Measurement

direction

Large Dia. MTL type Optimized cutting edge design for melleable material used in large sized casings

� Drilling PrecisionWork material : SS400 (Stacked plates)Drill size : φ37.5 x 5DConditions : Vc=90m/min, f=0.25mm/revCoolant : Emulsion type

� Drilling Resistance (Thrust)

Measurement pointMeasurement point

Exit

n Recommended Cutting Conditions Vc: Cutting Speed (m/min), f: Feedrate (mm/rev)

Work Soft Steel(~250HB)

General Steel(250~320HB)

Hardened Steel(45HRC)

Stainless Steel(~200HB) Grey Cast Iron Ductile Cast Iron Aluminum Alloys*

Recommended Head MEL type MTL type / MEL type MTL type MEL type MTL type / MEL type MTL type / MEL type MEL typeDrill DiameterøDc (mm) Cond. min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max min - optimum - max

~ ø36.5vc

60-80-120(40-50-80)

60-80-120(40-50-80)

40-60-80(30-50-60)

40-60-80(30-40-60)

50-70-100(40-60-90)

50-60-90(40-50-70) 200-240-260

f 0.25-0.30-0.40 0.20-0.25-0.35 0.15-0.25-0.30 0.15-0.20-0.25 0.25-0.35-0.45 0.25-0.30-0.35 0.35-0.50-0.60

~ ø42.5vc

60-80-120(40-50-80)

60-80-120(40-50-80)

40-60-80(30-50-60)

40-60-80(30-40-60)

50-70-100(40-60-90)

50-60-90(40-50-70) 200-240-260

f 0.25-0.30-0.40 0.20-0.25-0.35 0.15-0.25-0.30 0.15-0.20-0.25 0.25-0.35-0.45 0.25-0.30-0.35 0.35-0.50-0.60Note : Where machine and work clamp rigidity are good, conditions may be increased up to the maximum range. For 8xD drills, please use cutting speeds stated within the ( ). Before drilling 8xD holes, it is advisable to make a guide hole of similar diameter.

* Inquire about drills designed specifically for Aluminum Alloys

4 5

SEC-MultiDrillSMD type (For Structural Steel)MEL

TypeTypeMTL


MBType

n Recommended Cutting Conditions (MB type) Vc: Cutting Speed (m/min), f: Feedrate (mm/rev)

Work Rolled Steel for Welded StructuresSS400

Rolled Steel for Welded StructuresSM490



Recommended Head MB type MB type MB type MB typeDrill Diameter

øDc (mm) Conditions min - optimum - max min - optimum - max min - optimum - max min - optimum - max

ø24.5 ~

ø26.7

vc 60-70-80 55-65-75 55-65-75 55-65-75

f 0.20-0.30-0.40 0.20-0.25-0.35 0.20-0.25-0.35 0.20-0.25-0.35

MB type Specially for drilling Rolled Steel for Welded Structures (single or stacked plates)X-type Thinning

Excellent fracture resistance and excellent chip controlCutting Edge Designed Exclusively

For Drilling Structrual Steel

Unique wide and smooth flute shape significantly improve chip control and evacuationNew J Flute Design

Smooth flute surface greatlyimproves chip evacuation Highly Polished Flute

Reduces peripheral edge chipping caused by sudden work shiftRobust Substrate & Reinforced Edge Treatment

150o Point Angle

Directs coolant at thecutting edge even

during MQL drillingCentralized Oil Hole

MB type forStructural Steel

SM490YBVc=87m/min,f=0.29mm/rev

Good Chip Control

Elongated Chips

DEX Coat � Application Examples

SM490YBVc=87m/min,f=0.29mm/rev

Competitor’s Drill

Compared to current tool

1.7x ~ 3.0xLonger Tool Life

Huge Potential SavingsTool Cost

n Cutting Length Comparison (MB type)Example Current Tool Tool Life Comparison (Cutting Length) Cutting Conditions

Case 1 Comp AIndexable Head Drill

Vc=46m/min f=0.35mm/revCoolant : MQL

Case 2 Comp BIndexable Head Drill


Case 3 Comp CBrazed Drill


Case 4 Comp DIndexable Head Drill


2.5x tool life

1.7x tool life

3.0x tool life

1.7x tool life

120m70m

32m95m

87m50m

42m17mCurrent Tool

MB type

Current Tool

MB type

Current Tool

MB type

Current Tool

MB type

6 7

SEC-MultiDrillSMD type

øDc h

7

140°

h1

l Drill Head

n Drill Heads (f12.0~f30.5mm) [Grades - MTL type: ACX70 / MEL type: ACX80] n Holders M (3D), L (5D), D (8D)

Drill Diameter

øDc

Drill Heads Holders

MTL type MEL typeh1

M(3D) L(5D) D(8D)

Cat No. Stock Cat No. Stock Cat No. Stock Cat No. Stock Cat No. Stock12.0 SMDT 1200MTL l SMDT 1200MEL l

9.1 SMDH 120M l SMDH 120L l 12.1 SMDT 1210MTL l SMDT 1210MEL l12.2 SMDT 1220MTL l SMDT 1220MEL l12.3 SMDT 1230MTL l SMDT 1230MEL l

12.5 SMDT 1250MTL l SMDT 1250MEL l9.4 SMDH 125M l SMDH 125L l 12.6 SMDT 1260MTL l SMDT 1260MEL l

12.7 SMDT 1270MTL l SMDT 1270MEL l

13.0 SMDT 1300MTL l SMDT 1300MEL l 9.7 SMDH 130M l SMDH 130L l 13.1 SMDT 1310MTL l SMDT 1310MEL l


10.3 SMDH 140M l SMDH 140L l SMDH 140D l14.0 SMDT 1400MTL l SMDT 1400MEL l14.1 SMDT 1410MTL l SMDT 1410MEL l14.2 SMDT 1420MTL l SMDT 1420MEL l14.5 SMDT 1450MTL l SMDT 1450MEL l

15.0 SMDT 1500MTL l SMDT 1500MEL l 11.0 SMDH 150M l SMDH 150L l SMDH 150D l15.5 SMDT 1550MTL l SMDT 1550MEL l


11.6 SMDH 160M l SMDH 160L l SMDH 160D l


16.0 SMDT 1600MTL l SMDT 1600MEL l16.3 SMDT 1630MTL l SMDT 1630MEL l16.5 SMDT 1650MTL l SMDT 1650MEL l



12.9 SMDH 180M l SMDH 180L l SMDH 180D l17.7 SMDT 1770MTL l SMDT 1770MEL l

18.0 SMDT 1800MTL l SMDT 1800MEL l18.5 SMDT 1850MTL l SMDT 1850MEL l



21.0 SMDT 2100MTL l SMDT 2100MEL l14.8 SMDH 210M l SMDH 210L l SMDH 210D l21.2 SMDT 2120MTL l SMDT 2120MEL l




24.0 SMDT 2400MTL l SMDT 2400MEL l15.4 SMDH 240M l SMDH 240L l SMDH 240D l24.1 SMDT 2410MTL l SMDT 2410MEL l








øDs h

6

l Holder

Please inquire about drill sizes not listed above.

8D5D3DSoftSteel

GeneralSteel

Hardened Steel StainlessSteel

Ti-Alloy Inconel Grey

Cast IronDuctile

Cast IronAluminum

AlloyCopperAlloy45HRC 60HRC

MTLMEL With Oil Hole

Coated

Carbide Indexable

MELTypeType


MBType

MELTypeType


MBType

l mark: Stocked item

6 7

SEC-MultiDrillSMD type

øDsh

6

øDch

7

140°

(Effective Flute Length)

Ls

l Assembled Drill

n Dimensions of Assembled Drill with MTL/MEL type Drill Heads n Spare Parts, Recommended Tightening Torque

Drill Diameter

øDc

M(3D) L(5D) D(8D) Shank Cap Screw Wrench RecommendedTightening

Torque(N.cm)

Drill Diameter

øDc

Dimensions Dimensions Dimensions Dimensions

L L L s øDs

12.044 105 69 130 48 16

BXD02208IP TRDR08IP 75~100

12.012.1 12.112.2 12.212.3 12.312.5

44 105 69 130 48 16 12.5

12.6 12.612.7 12.713.0 47 110 74 140 48 16 13.013.1 13.113.5

52.5 116.5 81.5 146.5 124.5 191.5 48 16

13.514.0 14.014.1 14.114.2 14.214.5 14.515.0 55.5 126.5 86.5 156.5 133.5 201.5 50 20 15.015.5 15.515.6

59.5 131.5 92.5 166.5 141.5 211.5 50 20


15.615.7 15.716.0 16.016.3 16.316.5 16.517.0 62.5 136.5 97.5 171.5 150.5 221.5 50 20 17.017.5 17.517.6

66.5 141.5 103.5 176.5 158.5 226.5 50 20

17.617.7 17.718.0 18.018.5 18.519.0 69.5 156.5 108.5 191.5 167.5 251.5 56 25


19.019.5 19.520.0 73.5 156.5 114.5 196.5 175.5 262 56 25 20.020.5 20.521.0

76.5 156.5 119.5 196.5 184.5 266.5 56 25 21.0

21.2 21.221.5 21.522.0 80.1 161.1 125.1 201.1 192.1 271.1 56 25


22.022.5 22.523.0 82.6 160.6 129.6 210.6 200.6 280.6 56 25 23.023.5 23.524.0

86.2 170.2 135.2 220.2 208.2 295.2 60 32 24.0

24.1 24.124.5 24.525.0 88 170 140 225 217 300 60 32


25.025.5 25.526.0 92 175 146 230 225 310 60 32 26.026.5 26.527.0 94 175 151 235 234 320 60 32 27.027.5 27.528.0 97 180 157 240 242 325 60 32


28.028.5 28.529.0 100 185 162 245 251 335 60 32 29.029.5 29.530.0 104 185 167 255 259 345 60 32 30.030.5 30.5

Only use MTL/MEL type drill heads for M/L/D type holders

MELTypeType


MBType

MELTypeType


MBType

8D5D3DSoftSteel

GeneralSteel



Cast IronDuctile

Cast IronAluminum


MTLMEL With Oil Hole

Coated

Carbide Indexable

SEC-MultiDrillSMD type (Large Diameters)

h1

øDc h

7

140°

l Drill Head

øDsh

6

l Holder

øDsh

6

(Effective Flute Length)

Ls

øDch

7

140°

l Assembled Drill

Drill DiameterøDc

Drill Heads HoldersMTL type

h1M(3D) L(5D) D(8D)

Cat No. Stock Cat No. Stock Cat No. Stock Cat No. Stock31.0 SMDT 3100MTL l

15.2 SMDH 320M l SMDH 320L l SMDH 320D l31.5 SMDT 3150MTL32.0 SMDT 3200MTL l32.5 SMDT 3250MTL

15.2 SMDH 335M l SMDH 335L l SMDH 335D l33.0 SMDT 3300MTL l33.5 SMDT 3350MTL34.0 SMDT 3400MTL l

16.6 SMDH 350M l SMDH 350L l SMDH 350D l34.5 SMDT 3450MTL35.0 SMDT 3500MTL l35.5 SMDT 3550MTL


18.1 SMDH 380M l SMDH 380L l SMDH 380D l37.5 SMDT 3750MTL l38.0 SMDT 3800MTL l38.5 SMDT 3850MTL


19.5 SMDH 410M l SMDH 410L l SMDH 410D l40.5 SMDT 4050MTL l41.0 SMDT 4100MTL l41.5 SMDT 4150MTL

19.3 SMDH 425M l SMDH 425L l SMDH 425D l42.0 SMDT 4200MTL l42.5 SMDT 4250MTL

Drill DiameterøDc

M(3D) L(5D) D(8D) Shank Cap Screw Wrench RecommendedTightening

Torque(N.cm)

Dimensions Dimensions Dimensions DimensionsL L L s øDs

31.097.9 195 163 260 257.9 355 60 32.0


31.532.032.5

103.3 200 171.5 270 273.3 370 60 32.033.033.534.0

106.8 215 182 290 287 395 70 40.0

BX0515 HD040 720

34.535.035.5

112.3 220 187.5 295 297.3 405 70 40.036.036.537.0

115.8 225 195.8 305 310.8 420 70 40.037.538.038.5

121.3 230 206.3 315 321.3 430 70 40.039.039.540.0

129.8 245 209.8 325 334.8 450 70 40.040.541.041.5

135.3 250 220.3 335 345.3 460 70 40.042.042.5

n Drill Heads (f31.0~f42.5mm) [Grade - MTL type: ACX80] n Holders M (3D), L (5D), D (8D)

SoftSteel

GeneralSteel



Cast IronDuctile

Cast IronAluminum


MTL


8D5D3DMELTypeType


MBType

With Oil HoleCoated

Carbide Indexable

n Dimensions of Assembled Drill with MTLtype Drill Heads n Spare Parts, Recommended Tightening Torque

8

Only use MTL type drill heads for M/L/D type holders

SEC-MultiDrillSMD type (For Structural Steel)

150°

h1

øDc h

7

l Drill Head

L

(Effective Flute Length)s

øDsh

6

øDch

715

0°

l Assembled Drill

3DSoftSteel

GeneralSteel



Cast IronDuctile

Cast IronAluminum


MB

With Oil HoleCoated

Carbide Indexable

n Drill Heads [Grade - MB type: ACX80] n Holders B3 (3D) n Assembled Drill Dimensions n Spare Parts, Rec. Tightening Torque

Drill Diameter

øDc

Drill Heads Holders Shank Cap Screw Wrench RecommendedTightening

Torque(N.m)

MB typeh1

B3(3D) Dimensions Dimensions

Cat No. Stock Cat No. Stock L s øDs

24.5 SMDT 2450MB l15.4 SMDH 240B3 l 86.2 170.2 60 32 BXD03512IP TRDR15IP 279~372

24.7 SMDT 2470MB l

26.5 SMDT 2650MB l16.4 SMDH 260B3 l 92 175 60 32 BXD04014IP TRDR20IP 414~552

26.7 SMDT 2670MB l

Please inquire about drill sizes not listed above.

Stable drillingat drill entry

Thrust increasesat drill entry7,000

6,000

5,000

4,000

3,000

2,000

1,000

02 4 6 8 10 12 14

7,000

6,000

5,000

4,000

3,000

2,000

1,000

02 4 6 8 10 12

� Improve Lubrication Supply to Cutting Edge (Rebinder Effect)

Rebinder Effect...The Rebinder Effect causes thinner chips by reducing surface energy (through increasing the shear angle) by allowing pressureadditives in the coolant to flow into micro cracks that occur in areas of the metal surface that are subjected to stress.

※ Due to the difference in oil holes and cutting edge positions, MTL/MEL type drill heads are not compatible to use with B3 type drill holders and similarly incompatible for MB type drill heads to use with M/L/D type drill holders.

� Comparison of Cutting Resistance (Thrust Force)

Holder

Head

Coolant supply is directedcloser to the cutting edge.

Coolant

MB typeFor Structural SteelMTL/MEL type

Work material: SS400 Drill diameter: ø24.7mm Cutting conditions: Vc=70m/min, f=0.35mm/rev, Coolant: MQL

14

MELTypeType


MBType

Only use MB type drill heads for B3 type holders

Copyright ©Stephen Gibson - Fotolia.com & ©Anne DAUBERNET - Fotolia.com All Rights Reserved.


Excellent!

9

! SAFETY NOTESVery hot or lengthy chips may be discharged while themachine is in operation. Therefore, machine guards, safety goggles or other protective covers must be used.Fire safety precautions must also be considered.

� Please handle with care as this product has sharp edges.Improper cutting conditions or mis-handling of the tool may result in breakages or projectiles. Therefore, please use the tool within its recommended conditions.

��

When using non-water soluble cutting oil, precautionsagainst fire must be taken and please ensure that a fireextinguisher is placed near the machine.

�

Global Marketing Department : 1-1 Koyakita 1-Chome, Itami, Hyogo 644-0016 JapanTel : (+81) 72-772-4535 Fax : (+81) 72-771-0088

SHAP12-04

� Head Replacement Instructions

(1) Remove the used head. Clean off all foreign particles from the serrated portion of the drill holder with air blow.

(2) With a wire brush, further remove any foreign particles that cannot be cleared by air blow.

(3) Take care when tightening the screws as the area around the screw hole will easily chip if the wrench slips. Ensure that the wrench is positioned squarely and its head is sitting properly in the screw head pattern to prevent wearing out the pattern.(4) Screws should be replaced as soon as they start to show signs of wear or shape deformation after long-term usage.(5) Refer to the drill set tables for the appropriate tightening torque.

Take care toavoid chipping

� If the SMD type drills are not utilized for long periods of time, it is advised that the drill heads and bodies are stored separately.

� Due to the difference in oil holes and cutting edge positions, MTL/MEL type drill heads are not compatible to use with B3 type drill holders and similarly incompatible for MB type drill heads to use with M/L/D type drill holders. � The SMD drill is not recommended for the following workpieces. For such applications, it is advisable to use either a solid or brazed drill and ensure that the feedrate is reasonably reduced.

Precautions

Slanted entry face Intersecting holes Interruption at exitor slanted exit face

� Work examples

� Head Replacement Instructions

(1) Remove the used head. Clean off all foreign particles from the serrated portion of the drill holder with air blow.

(2) With a wire brush, further remove any foreign particles that cannot be cleared by air blow.

(3) Take care when tightening the screws as the area around the screw hole will easily chip if the wrench slips. Ensure that the wrench is positioned squarely and its head is sitting properly in the screw head pattern to prevent wearing out the pattern.(4) Screws should be replaced as soon as they start to show signs of wear or shape deformation after long-term usage.(5) Refer to the drill set tables for the appropriate tightening torque.

Take care toavoid chipping

� If the SMD type drills are not utilized for long periods of time, it is advised that the drill heads and bodies are stored separately.

� Due to the difference in oil holes and cutting edge positions, MTL/MEL type drill heads are not compatible to use with B3 type drill holders and similarly incompatible for MB type drill heads to use with M/L/D type drill holders. � The SMD drill is not recommended for the following workpieces. For such applications, it is advisable to use either a solid or brazed drill and ensure that the feedrate is reasonably reduced.

Precautions

Slanted entry face Intersecting holes Interruption at exitor slanted exit face

� Work examples


TypeTypeMTL


MBType

MELTypeType


MBType

MELTypeType


MBType

Documents

Indexable Head Indexable Head T E B SEC-MultiDrill SMD typeIndexable Head Indexable Head Indexable Head MB Type MEL Type Type MTL Indexable Head Indexable Head Indexable Head MB Type