Page 432 - THREADING CATALOG

USER GUIDE
THREAD DRILLING ISO Material non-alloy steel <0.25% C Material Condition Vc (m/min) Ø4-Ø5 Ø5.1-Ø6 Cutting Diameter 0.35-0.60

Cutting Recommendations for 3 Flute Solid Carbide Drills
Cutting
Feed f (mm/rev)
Speed
No
Material
Ø8.1-Ø10 Ø10.1-Ø12
Ø6.1-Ø8
(1)
1
80-140
annealed
2
80-130
≥0.25% C
annealed
quenched and
3
80-120
<0.55% C
0.30-0.55
and cast steel,
0.25-0.45
tempered
free cutting steel
annealed
4
70-110
≥0.55% C
50-90
tempered
P
annealed
7 5 6 low alloy and cast steel quenched and 80-120 0.15-0.25 0.20-0.35 0.25-0.40 0.30-0.50 0.35-0.55
70-110
(less than 5% of
8 alloying elements) quenched and 50-90
tempered
9 40-70
10 annealed 50-90
high alloyed steel, cast
11 steel and tool steel quenched and 40-80 0.15-0.20 0.20-0.30 0.25-0.35 0.30-0.45 0.35-0.50
tempered
15 gray cast iron (GG) ferritic / pearlitic 80-140 0.25-0.45 0.35-0.55 0.40-0.60 0.45-0.65
16 pearlitic / martensitic 70-120
K 17 nodular cast iron (GGG) ferritic 80-120 0.20-0.30
18 pearlitic 70-110 0.20-0.40 0.30-0.50 0.35-0.55 0.40-0.60
19 malleable cast iron ferritic 80-120
20 pearlitic 70-110
(1) For workpiece materials list, see pages 443-472

ISCAR
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