Super MultiDrills HGS (Internal 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
Stainless Steel
Tempered Steel
Ductile Cast Iron
Aluminum Alloy
Ti Alloy Heat-resistant Steel
Copper Alloy
Cast Iron
Coolant Hole
Coating
Steel
MDW - HGS Cutting Conditions
Drill Diameter (inch)
Hardness HB
Speed = SFM Feed = IPR
MDW
Part Material
ø0.395 >
ø < ø0.196
ø0.197 - ø0.394
SFM
300 - 475
400 - 550
450 - 650
<190
IPR
.004 - .008
.006 - .010
.008 - .014
SFM
225 - 425
265 - 530
425 - 625
Low Carbon Steel
190 ~ 250
J
IPR
.004 - .008
.006 - .010
.008 - .014
SFM
175 - 375
225 - 495
250 - 525
250 ~ 300
IPR
.003 - .006
.004 - .008
.006 - .012
SFM
225 - 425
265 - 530
350 - 575
P
180 ~ 275
IPR
.004 - .008
.006 - .010
.008 - .014
Medium Carbon Steel
SFM
175 - 375
225 - 495
305 - 525
275 ~ 350
IPR
.003 - .006
.004 - .008
.006 - .012
SFM
190 - 380
225 - 475
275 - 525
200
IPR
.003 - .008
.006 - .010
.008 - .014
Alloy Steel
SFM
125 - 300
155 - 325
155 - 350
350
IPR
.003 - .006
.004 - .008
.006 - .010
SFM
120 - 225
150 - 325
150 - 325
HGS 2D 5D 8D
300 Austenitic Stainless Steel
160 ~ 280
IPR
.002 - .006
.004 - .010
.006 - .012
M
SFM
120 - 250
175 - 350
175 - 350
400 Martensitic Stainless Steel
160 ~ 240
IPR
.002 - .006
.004 - .010
.006 - .012
SFM
150 - 380
250 - 475
275 - 530
Cast Iron
IPR
.006 - .010
.006 - .014
.006 - .014
K
SFM
150 - 350
225 - 450
250 - 500
Ductile Iron
IPR
.006 - .010
.006 - .014
.006 - .014
SFM
60 - 190
80 - 225
80 - 225
H
Hardened Steel
45-60 Rc
IPR
.002 - .004
.003 - .006
.004 - .008
SFM
65 - 130
80 - 130
80 - 160
Titanium Alloy Ti-6Al-4V
IPR
.003 - .004
.003 - .005
.003 - .006
S
SFM
40 - 85
40 - 100
50 - 120
Exotics - Inconel, Monel
IPR
.002 - .003
.003 - .005
.003 - .006
SFM
500 - 800
600 - 1000
600 - 1000
Aluminum alloy
IPR
.003 - .006
.004 - .008
.006 - .012
N
SFM
400 - 800
500 - 800
500 - 800
Copper Alloy
IPR
.003 - .006
.004 - .008
.006 - .010
J31
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