Recommended Cutting Conditions
Drill Inserts (INCH)-HSS
(切削参数)
Material
Material
Hardness
(Bhn)
★
HSS
Grade
Speed(SFM)
Feed(IPR)
TiN
TiCN
TiAlN
3/8〞
~1/2〞
33/64〞
~11/16〞
45/64〞
~15/16〞
31/32〞
~1★3/8〞
1★13/32〞
~1★7/8〞
1★29/32〞
~2★9/16〞
2★19/32〞
~4★1/2〞
Free machining Steel
1213,12L13,1215
12L14,1118 etc
100 - 150
HSS
210
260
275
0.007
0.010
0.013
0.016
0.020
0.023
0.028
150 - 200
HSS
190
230
265
0.007
0.010
0.013
0.016
0.020
0.023
0.028
200 - 250
HSS
170
215
235
0.006
0.010
0.013
0.016
0.020
0.023
0.028
Low Carbon Steel
1015,1020,1140
1025 etc
85 - 125
HSS
180
220
245
0.006
0.009
0.012
0.015
0.019
0.023
0.027
125 - 175
HSS
170
205
235
0.006
0.009
0.012
0.015
0.019
0.023
0.027
175 - 225
HSS
160
190
225
0.005
0.008
0.010
0.014
0.018
0.021
0.024
225 - 275
HSS
145
185
215
0.005
0.008
0.010
0.014
0.018
0.021
0.024
Medium Carbon Steel
1035,1050,1045
1055,1140 etc
125 - 175
HSS
170
205
245
0.006
0.009
0.012
0.015
0.019
0.023
0.027
175 - 225
HSS
155
195
225
0.005
0.008
0.010
0.014
0.018
0.021
0.024
225 - 275
HSS
145
185
205
0.005
0.008
0.010
0.014
0.018
0.021
0.024
275 - 325
SH,PH
135
170
190
0.004
0.007
0.009
0.012
0.016
0.019
0.022
Structural Steel
A36,A516,A182 etc
100 - 150
HSS
145
185
205
0.006
0.010
0.012
0.014
0.018
0.021
0.026
150 - 250
HSS
125
155
180
0.005
0.009
0.010
0.012
0.016
0.019
0.024
250 - 350
SH,PH
100
135
135
0.004
0.008
0.009
0.010
0.014
0.017
0.020
Cast Iron/S,G Iron
A48-76 GR30/GR45
A536-72 60-40-18
A220-76 GR40010 etc
120 - 150
HSS
170
210
245
0.007
0.012
0.016
0.020
0.024
0.027
0.030
150 - 200
HSS
160
190
230
0.006
0.011
0.014
0.018
0.022
0.025
0.028
200 - 220
HSS
135
175
190
0.006
0.009
0.012
0.016
0.018
0.021
0.024
220 - 260
SH,PH
115
145
170
0.005
0.007
0.009
0.012
0.014
0.017
0.020
260 - 320
SH,PH
95
115
135
0.004
0.006
0.007
0.009
0.012
0.014
0.016
Alloy Steel
8620,4130,4137
4140,6150 etc
125 - 175
HSS
160
190
205
0.006
0.008
0.010
0.014
0.017
0.019
0.022
175 - 225
HSS
150
185
190
0.005
0.008
0.010
0.014
0.017
0.019
0.022
225 - 275
HSS
135
165
185
0.005
0.007
0.010
0.014
0.017
0.019
0.022
275 - 325
SH,PH
125
155
175
0.004
0.006
0.009
0.012
0.015
0.017
0.020
325 - 375
SH,PH
115
140
150
0.003
0.006
0.009
0.012
0.015
0.017
0.020
Tool Steel
H13,H21,A2,S1 etc
150 - 200
SH
85
110
110
0.004
0.006
0.008
0.010
0.012
0.015
0.017
200 - 250
SH,PH
60
90
85
0.004
0.006
0.008
0.010
0.012
0.015
0.017
High Temp.Alloy
Hastelloy B,Inconel etc
140 - 220
SH,PH
35
35
40
0.003
0.007
0.008
0.010
0.012
0.015
-
220 - 310
PH
30
30
35
0.003
0.006
0.007
0.008
0.010
0.012
-
High Strength Alloy
9840,4340,4330V etc
225 - 300
SH,PH
80
110
115
0.005
0.007
0.009
0.010
0.014
0.017
0.020
300 - 350
SH,PH
60
85
90
0.004
0.007
0.009
0.010
0.014
0.017
0.020
350 - 400
PH
55
70
70
0.003
0.006
0.008
0.009
0.012
0.015
0.018
Aluminium
2014,6061,7075 etc
30
HSS
620
750
800
0.008
0.013
0.016
0.020
0.022
0.025
0.025
180
HSS
300
450
450
0.008
0.013
0.016
0.018
0.022
0.025
0.025
Stainless Steel
310,316,410,330 etc
135 - 185
HSS
80
95
110
0.006
0.008
0.009
0.011
0.014
0.016
0.020
185 - 275
HSS
65
75
95
0.005
0.007
0.008
0.010
0.012
0.014
0.018
RPM = revolution per minute(rev/min)
SFM = surface feet per minute(ft/min)
DIA = diameter of drill (inch)
IPR = feed rate (in/rev)
IPM = inch per minute penetration rate
HSS Grade：HSS = HSS M4，SH = Super HSS T15， PH = Premium HSS M48
The recommendations for speeds, feeds and other parameters presented in this chart are nominal
recommendations and should be considered only as good starting points.
Speed and feed reductions (20% reduction in speed and 10% reduction in feed) are recommended.