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USER GUIDE
GUNDRILLS Machining Recommendations for TRIDEEP Drills 06 07 08 Feed Per Insert Size "GF" & "DT" 12 13

Tensile Strength
LOGT/TOGT
Hardness HB
10
09
11
ISO
Material
<0.25% C Condition 61 [ksi] 125 Material 1 Group No. V SFM IPR
Annealed
≥0.25% C Annealed 94 190 2
Non-alloy .002-.003 .002-.004 .002-.004 .002-.004 .002-.005
steel and cast <0.55% C Quenched and 123 250 3 .003-.006 .003-.006 .003-.006 .003-.006 .003-.007
tempered
steel, free
cutting steel Annealed 109 220 4
≥0.55% C Quenched and
tempered 145 300 5
Annealed 87 200 6 .002-.005
P Low alloy and cast steel 135 275 7 260-395 .002-.008
(less than 5% of Quenched and 145 300 8
alloying elements) tempered
174 350 9
Annealed 99 200 10
High alloyed steel, cast
steel and tool steel Quenched and 160 325 11
tempered .002-.003 .002-.004 .002-.004 .002-.004 .002-.005
Ferritic/ 99 200 12 .003-.006 .003-.006 .003-.006 .003-.006 .003-.007
Stainless steel and cast steel martensitic
Martensitic 119 240 13
.001-.002 .001-.002 .001-.002 .001-.002 .001-.002
M Stainless steel and cast steel Austenitic, duplex 87 180 14 165-330
.002-.005 .002-.005 .002-.005 .002-.005 .002-.005
Ferritic/pearlitic 180 15
Gray cast iron (GG) Pearlitic/
martensitic 260 16
K Ferritic 160 17 165-330 .001-.006 001-.006 .002-.007 .002-.007 .002-.007
Nodular cast iron (GGG) 260-395 .003-.01 .003-.01 .003-.01 .003-.012 .003-.012
Pearlitic 250 18
Ferritic 130 19
Malleable cast iron
Pearlitic 230 20
Not hardenable 60 21
Aluminum-wrought alloys
Hardenable 100 22
Not hardenable 75 23
Aluminum- ≤12% Si Hardenable 90 24
cast alloys
>12% Si High temperature 130 25
N >1% Pb Free cutting 110 26 260-525 .001-.006 .001-.006 .001-.007 .002-.007 .001-.007
.003-.008
.003-.008
.003-.008
.003-.008
.003-.008
Copper alloys Brass 90 27
Electrolytic 100 28
copper
Duroplastics,
Non metallic fiber plastics 29
Hard rubber 30
Annealed 200 31
Fe based
High Hardened 280 32
S temperature Annealed 250 33 65-165 .003-.006 .003-.006 .003-.006 .003-.006 .003-.006
alloys Ni or Co Hardened 350 34
based
Cast 320 35

352 ISCAR