DRILLS
INDEXABLE INSERT DRILL—CUTTING DATA
Cutting Speed SFM Coolant Delivery
Feed IPR
Material
Drill Diameter Flood Through Tool ≤Ø.812 Ø.845-1.000 Ø1.031-1.188 Ø1.219-1.688 Ø1.750 & Over
Carbon Steel 10XX-15XX, 1018, 1212, 1551 250-400
575-800 550-700 450-580 490-620 600-750 460-590 650-1150
.0020 .0020 .0025 .0025 .0040 .0040 .0060
.0040 .0040 .0030 .0030 .0055 .0055 .0085
.0050 .0050 .0035 .0035 .0060 .0060 .0085
.006 .006 .004 .004 .007 .007 .010
.0080 .0080 .0045 .0045 .0080 .0080 .0120
Alloy Steel 21XX-92XX, 4130, 4340, 8620
230-350
300 Series Stainless Steel 304, 316, 17-4Ph 230-350
400 Series Stainless Steel 410, 430
230-350 250-360 230-270 325-400
Grey Cast Iron
Ductile/Nodular Cast Iron Aluminum & Non-Ferrous
Cutting Speed:
Feed Rate: IPM = RPM x IPR
SFM x 3.82
RPM =
K VALUES
Drill Ø
Carbon Steel
Alloy Steel
Stainless Steel
Grey Cast Iron
Ductile/Nodular Cast Iron
Aluminum & Non-Ferrous
(.785)(D 2 )(RPM)(IPR)
hP=
1.6
1.3
1
1.7
1.5
3.4
K
THRUST REQUIREMENTS
HORSEPOWER REQUIREMENTS
1000 1200 1400 1600 1800 2000
5 10 15 20 25 30 35 40 45
BASED ON DRILLING 1018 STEEL @ 700 SFM
BASED ON DRILLING 1018 STEEL
200 400 600 800
¾" 1" 1¼" 1½" 1¾" 2" 2¼" 2½" 2¾" 3"
Drill Diameter
¾" 1" 1¼" 1½" 1¾" 2" 2¼" 2½" 2¾" 3"
Drill Diameter
COOLANT REQUIREMENTS*
COOLANT VOLUME*
25
75
20
60
15
45
10
30
5
15
D
2x
3x
1"
2"
3"
Drill Depth
Drill Diameter
Flood Coolant Allowed
Coolant Through Drill Required
*For coolant requirements and coolant volume, add 10-20% for vertical drilling operations
A disc is generated during through-boring operations. In case of rotating workpieces, there is an accident hazard due to the development of centrifugal force. Therefore, always work with safety guards. ! CAUTION
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