Page 15 - Wurth Total Catalogue

HSCO twiSt drill bitS - metriC - infOrmatiOn

Material Material Examples Tensile Strength Cooling Cutting Medium r.p.m. at drill dia.
N/sq.mm Agent Speed feed s (mm/r.p.m.)
m/min. 2 5 8 10 16 20
Oil 1280 510 320 255 160 130
Spring steel* 38Si:51MnV7:67SiCr5,58CrV4 800-1100 4-12
(emulsion) 0.025 0.050 0.080 0.100 0.125 0.160
Corrosion and X20Cr 13:X5CrNi18 9: 1600 635 400 320 200 160
Acid Resistant Steel X10CrNiMoTi 18 10 500-800 Oil 10 0.032 0.063 0.100 0.125 0.160 0.200
2560 1025 640 515 320 255
X10CrSi6:X10CrA17 450-700 Oil 16
0.032 0.063 0.100 0.125 0.160 0.200
X10CrAI18:X20CrNiSi25 4: 1600 635 400 320 200 160
Heat Resistant Steel 500-800 Oil 10
X12CrNiTi18 9 0.025 0.050 0.080 0.100 0.125 0.160
960 385 240 190 120 95
* X12CrNi25 21:X12NiCrSi36 16 500-800 Oil 6
0.020 0.040 0.063 0.080 0.100 0.125
Nimonic, Hastelloy 960 385 240 190 120 95
Special Ni-Cr-alloy* 500-1200 Oil 3-10
Inconel, Monel 0.022 0.045 0.071 0.090 0.112 0.143
Ti and Ti99, 5-99.8: TiAl5Sn2, 5: 350-800 Oil 10 1600 635 400 320 200 160
Ti Alloy, Annealed TiAl5Sn5Zr5 0.025 0.050 0.080 0.100 0.125 0.160
Ti Alloy Precipitation 800 320 200 160 100 80
Hardened TiCu2:TiAl6V4:TiAl6V6Sn2 700-1200 Oil 5 0.020 0.040 0.063 0.080 0.100 0.125
Oil 3200 1280 800 640 400 320
Bronze Cu-Ni Alloyed* CuNi10Fe: CuNi30Fe 300-500 20
(emulsion) 0.032 0.063 0.100 0.125 0.160 0.200
CuAl8Fe: Oil 2400 955 600 480 300 240
Bronze Cu-Al Alloyed* 400-650 10-20
G-CuAl10Fe, G-CuAl 11 Ni (emulsion) 0.032 0.063 0.100 0.125 0.160 0.200
* Limited suitability

AUS. pub. 06/10 ©

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