Boring Tools Cutting Data Tables

Cutting data

Boring

Ø 16-30 Ø 31-74

Cutting data for indexable insert drills serie 337 3xD and 4xD, Ø 16-30 mm

Cutting speed Vc (m/min) 1) Coolant

Feed fn (mm/U) Drill

from outside

trough the drill

Designation

No.

3xD / 4xD 160 - 200 140 - 160 140 - 160 120 - 160 100 - 140 100 - 140 100 - 140 130 - 170 130 - 170 120 - 160 200 - 300

3xD

4xD

Ø 16-20

Ø 21-30

St 37 St 60 CK 45

(1.0067) (1.0062) (1.1191) (1.7220) (1.2311) (1.2080) (1.4108)

240 - 280 220 - 280 220 - 280 180 - 220 160 - 200 160 - 200 160 - 200 220 - 260 220 - 260 180 - 220 250 - 500

200 - 240 180 - 220 180 - 220 160 - 200 140 - 180 140 - 180 140 - 180 170 - 210 170 - 210 160 - 210 250 - 500

0.08 0.08 0.08 0.08 0.06 0.05 0.05 0.10 0.10 0.08 0.06

0.10 0.10 0.10 0.10 0.08 0.07 0.07 0.12 0.12 0.10 0.08

34CrMo4

40CrMnMo7

X210Cr12

X100CrMo13 GG 20 - GG 40

GG 60

GGG 42

Aluminum 2)

1) The above cutting data are guide values and apply under normal working conditions when an ample supply of coolant is used. 2) Machining of aluminium: In case of unfavourable chipping, interrupt drilling cycle for chip removal. Max. drilling depth with flood coolant supply: 1xD

Cutting data for indexable insert drills serie 336 2xD and 3xD, Ø 31-74 mm

Cutting speed Vc (m/min) 1) Coolant

Feed fn (mm/U) Drill

Designation

No.

from outside

trough the drill

31.0 - 41.9

≥ 42 0.10 0.15 0.15 0.15 0.15 0.15 0.15 0.25 0.25 0.15 0.10

St 37 St 60 CK 45

(1.0067) (1.0062) (1.1191) (1.7220) (1.2311) (1.2080) (1.4108)

200 - 240 180 - 220 180 - 220 140 - 180 120 - 160 120 - 160 120 - 160 150 - 220 150 - 220 140 - 180 200 - 300

240 - 280 220 - 280 220 - 280 180 - 220 160 - 200 160 - 200 160 - 200 220 - 260 220 - 260 180 - 220 250 - 500

0.10 0.12 0.12 0.12 0.12 0.12 0.12 0.22 0.22 0.12 0.10

34CrMo4

40CrMnMo7

X210Cr12

X100CrMo13 GG 20 - GG 40

GG 60

GGG 42

Aluminum

1) The above cutting data are guide values and apply under normal working conditions when an ample supply of coolant is used. Max. drilling depth with flood coolant supply: 1xD

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