Page 44 - HOLE_MAKING_CATALOG_INCH_2022_P187-P236

USER GUIDE
SOLID CARBIDE DRILLS

Machining Data for Solid Carbide Drills - IC908 D=.118-.787”
Tensile Material Cutting Feed (IPR) vs. Drill Diameter
Strength Hardness Group Speed
ISO Material Condition [ksi] HB No. (1) Vc (SFM) Ø.118-.197 Ø.201-.315 Ø.319-.472 Ø.476-.630 Ø .634-.787
<0.25% C Annealed 61 125 1 260-390 .004-.007 .006-.010 .008-.012 .008-.014 .010-.016
Non-alloy ≥0.25% C Annealed 94 190 2 260-360 .004-.007 .006-.010 .008-.012 .008-.014 .010-.016
steel and Quenched and
cast steel, <0.55% C tempered 123 250 3
free cutting Annealed 109 220 4 230-330 .004-.008 .006-.011 .008-.014 .008-.015 .010-.017
steel ≥0.55% C Quenched and
tempered 145 300 5
Annealed 87 200 6
P Low alloy and cast steel 135 275 7 160-300 .004-.007 .006-.010 .008-.012 .008-.014 .010-.016
(less than 5% of Quenched and
alloying elements) tempered 145 300 8 200-260 .004-.007 .006-.010 .008-.012 .008-.014 .010-.016
174 350 9 160-230 .004-.008 .006-.011 .008-.014 .008-.015 .010-.017
Annealed 99 200 10 200-260 .004-.008 .006-.011 .007-.014 .008-.015 .010-.017
High alloyed steel, cast
steel and tool steel Quenched and 160 325 11 160-230 .004-.006 .005-.008 .006-.010 .006-.012 .007-.013
tempered
Ferritic/
Stainless steel martensitic 99 200 12 160-260 .002-.004 .002-.006 .002-.007 .003-.008 .004-.008
and cast steel
Martensitic 119 240 13 80-220 .002-.004 .002-.006 .002-.007 .003-.008 .004-.008
Stainless steel Austenitic,
M 87 180 14 80-220 .002-.004 .002-.006 .002-.007 .003-.008 .004-.008
and cast steel duplex
Ferritic /
pearlitic 180 15 280-340 .006-.010 .008-.014 .010-.018 .012-.020 .014-.022
Gray cast iron (GG)
Pearlitic /
martensitic 260 16 250-300 .006-.010 .008-.014 .010-.018 .012-.020 .014-.022
K Ferritic 160 17
Nodular cast iron (GGG)
Pearlitic 250 18 210-260 .005-.008 .006-.010 .008-.014 .010-.016 .012-.018
Ferritic 130 19
Malleable cast iron
Pearlitic 230 20
Aluminum- Not hardenable 60 21
wrought alloys Hardenable 100 22 230-980
Not hardenable 75 23 .004-.010 .006-.014 .010-.018 .012-.020 .014-.022
≤12% Si
Aluminum- Hardenable 90 24 230-660
cast alloys High
>12% Si 130 25
temperature
N >1% Pb Free cutting 110 26
Copper Brass 90 27 230-980 .003-.007 .005-.010 .008-.014 .010-.018 0.12-.020
alloys Electrolytic 100 28
copper
Duroplastics, 29
Non metallic fiber plastics
Hard rubber 30
Annealed 200 31
Fe based
High Hardened 280 32
temperature Annealed 250 33 50-110 .001-.003 .002-.004 .002-.005 .003-.006 .003-.007
alloys Ni or Co Hardened 350 34
S based Cast 320 35
Pure 58 190 36
Alpha+Beta
Titanium alloys
alloys, 152 310 37
hardened
Hardened 55 HRC 38
Hardened steel 130-230 .002-.004 .003-.005 .004-.006 .005-.006 .006-.007
H Hardened 60 HRC 39
Chilled cast iron Cast 400 40
Cast iron Hardened 55 HRC 41
• When using external coolant supply only, reduce cutting speed by 10%
• Use internal coolant supply when machining austenitic stainless steel
(1) For workpiece materials list, see pages 727-758
As a starting value, the middle of the recommended machining range should be used.
Then, according to wear results, conditions can be changed in order to optimize performance.

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