Page 87 - HOLE MAKING CATALOG p001-148

USER GUIDE
ISO ISO
MD-DR-DH Cutting Parameters
INDEXABLE DRILLS
Material Condition Tensile Vc Feed Vs. Drill Diameter
Annealed Strength Rm [m/min] 33<ØD<40 (mm)
Annealed 100-150 f [mm/rev]
Quenched and [N/mm2] Hardness HB Material No. 0.10-0.25
tempered 80-150
< 0.25 %C Annealed 420 125 1 0.15-0.30
Quenched and 70-120
≥ 0.25 %C tempered 650 190 2 80-150 0.15-0.30
Annealed 70-120 0.10-0.25
Non-alloy steel < 0.55 %C 850 250 3 180-300 0.10-0.25
and cast steel, Quenched and 0.18-0.35
free cutting steel tempered 750 220 4 150-250 0.15-0.30
0.15-0.35
≥ 0.55 %C Annealed 1000 300 5
Quenched and
P 600 200 6
tempered 930 275 7
Low alloy and cast steel (less Ferritic / pearlitic 1000 300 8
than 5% of alloying elements) 1200 350 9
Pearlitic / 680 200 10
High alloyed steel, cast martensitic
steel and tool steel 1100 325 11
Ferritic
Pearlitic 180 15
Ferritic
Grey cast iron (GG) Pearlitic 260 16
K Nodular cast iron (GGG)
160 17
Malleable cast iron 250 18
130 19
230 20

MD-DFN Cutting Parameters

Material Condition Tensile Vc [m/min] Feed Vs. Drill
Annealed Strength Rm 80-110-140 Diameter
Annealed 90-105-130
Quenched and [N/mm2] Hardness HB Material No. 33<ØD<40 (mm)
tempered 80-100-120 f [mm/rev]
< 0.25 %C Annealed 420 125 1
Quenched and 70-90-110 0.30 0.40 0.50
≥ 0.25 %C tempered 650 190 2
Annealed 50-70-90 0.30 0.40 0.50
Non-alloy steel < 0.55 %C 850 250 3 0.25 0.30 0.35
and cast steel, Quenched and 80-100-120
free cutting steel tempered 750 220 4 70-90-110 0.40 0.50 0.60
50-70-90
≥ 0.55 %C Annealed 1000 300 5 40-55-70
Quenched and 50-70-90
P 600 200 6
tempered 930 275 7 40-60-80
Low alloy and cast steel (less Ferritic / pearlitic 1000 300 8
than 5% of alloying elements) 1200 350 9 90-125-160
Pearlitic / 680 200 10
High alloyed steel, cast martensitic 80-110-140
steel and tool steel 1100 325 11
Ferritic 90-135-180
Pearlitic 180 15 80-110-140
Ferritic 90-125-160
Grey cast iron (GG) Pearlitic 260 16 80-110-140
K Nodular cast iron (GGG)
160 17
Malleable cast iron 250 18
130 19
230 20

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