Section J 25-26

Super MultiDrills GS (External Coolant Supply)

Carbon Steel/ Alloy Steel up to 0.28%

Carbon Steel/ Alloy Steel from 0.29%

Hardened Steel from 46HRC

Hardened Steel up to 45HRC

Tempered Steel

Stainless Steel

Ductile Cast Iron

Aluminum Alloy

Ti Alloy Heat-resistant Steel

Copper Alloy

Cast Iron

Coating

MDW - GS Cutting Conditions

Drill Diameter (inch)

Hardness HB

Speed = SFM Feed = IPR

MDW

Part Material

ø0.395 >

ø < ø0.196

ø0.197 - ø0.394

SFM

160 - 275

210 - 360

110 - 250

<190

IPR

.004 - .008

.006 - .010

.008 - .012

J

SFM

160 - 275

210 - 360

110 - 250

Low Carbon Steel

190 ~ 250

IPR

.004 - .008

.006 - .010

.008 - .012

SFM

140 - 250

190 - 325

100 - 225

250 ~ 300

IPR

.003 - .006

.004 - .008

.006 - .010

SFM

160 - 275

210 - 360

110 - 250

P

180 ~ 275

IPR

.004 - .008

.006 - .010

.008 - .012

Medium Carbon Steel

SFM

140 - 250

190 - 325

100 - 225

275 ~ 350

IPR

.003 - .006

.004 - .008

.006 - .010

SFM

160 - 275

210 - 360

110 - 250

200

IPR

.004 - .008

.006 - .010

.008 - .012

Alloy Steel

SFM

115 - 220

115 - 250

80 - 210

350

IPR

.003 - .006

.004 - .008

.006 - .010

SFM

60 - 160

80 - 210

50 -115

300 Austenitic Stainless Steel

160 ~ 280

GS 2D 4D

IPR

.002 - .006

.003 - .008

.004 - .010

M

SFM

75 - 180

90 - 225

60 - 120

400 Martensitic Stainless Steel

160 ~ 240

IPR

.002 - .006

.003 - .008

.006 - .010

SFM

195 - 390

250 -415

115 - 300

Cast Iron

IPR

.006 - .010

.006 - .014

.006 - .014

K

SFM

160 - 300

210 - 375

115 - 185

Ductile Iron

IPR

.006 - .010

.006 - .014

.006 - .014

SFM

40 - 80

50 - 100

40 - 60

H

Hardened Steel

45-60 Rc

IPR

.002 - .004

.003 - .006

.004 - .008

SFM

40 - 100

50 - 110

40 - 80

Titanium Alloy Ti-6Al-4V

IPR

.003 - .004

.003 - .005

.003 - .006

S

SFM

30 - 60

40 - 80

30 - 60

Exotics - Inconel, Monel

IPR

.002 - .003

.003 - .005

.003 - .006

SFM

400 - 800

400 - 800

300 - 700

Aluminum alloy

IPR

.003 - .006

.004 - .008

.006 - .012

N

SFM

400 - 800

400 - 800

300 - 700

Copper Alloy

IPR

.003 - .006

.004 - .008

.006 - .010

J18

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