Select Centering Solid carbide and HSS center drills WALTER TITEX Dimensions DIN 333 Machining conditions Machine sta trnaVll Marn systern 3 Work

Select Centering Solid carbide and HSS center drills WALTER TITEX Dimensions DIN 333 Machining conditions Machine sta trnaVll Marn systern 3 Workpiece 1 1 ft Designation K1161 Form A W ate Additional U Type Solid carbide Dia. range (mm) 0.50 6.30 Cutting tool material K10/20 Coating uncoated Page B 304 Material group Grouping of main material groups and identification letters Workpiece material Brinell hardness HB E R gt enr st E nsi m eTn N/ Machining group j p Non-alloyed and low alloy steel annealed (hardened and tempered) 210 700 P1, P2, P3, P4, P7 machining steels 220 750 P6 tempered 300 1010 P5, P8 tempered 380 1280 P9 tempered 430 1480 P10 High-alloyed steel and high-alloyed tool steel annealed 200 670 P11 hardened and tempered 300 1010 P12 hardened and tempered 400 1360 P13 Stainless steel ferritic/martensitic, annealed 200 670 P14 martensitic, tempered 330 1110 P15 M Stainless steel austenitic, duplex 230 780 M1, M3 austenitic, precipitation hardened (PH) 300 1010 M2 K Grey cast iron 245 K3, K4 Cast iron with spheroidal graphite ferritic, pearlitic 365 K1, K2, K5, K6 GGV (CGI) 200 K7 N Aluminum wrought alloys cannot be hardened 30 N1 hardenable, hardened 100 340 N2 Cast aluminum alloys < 12 % Si 90 310 N3, N4 > 12 % Si 130 450 N5 Magnesium alloys 70 250 N6 Copper and copper alloys (bronze/brass) non-alloyed, electrolytic copper 100 340 N7 brass, bronze, red brass 90 310 N8 Cu-alloys, short-chipping 110 380 N9 high-strength, Ampco 300 1010 N10 S Heat-resistant alloys Fe-based 280 940 S1, S2 Ni or Co base 250 840 S3 Ni or Co base 350 1080 S4, S5 Titanium alloys pure titanium 200 670 S6 a and p alloys, hardened 375 1260 S7 P alloys 410 1400 S8 Tungsten alloys 300 1010 S9 Molybdenum alloys 300 1010 S10 H Hardened steel 50 HRC H1 55 HRC H2, H4 60 HRC H3 O Thermoplasts without abrasive fillers O1 Thermosetting plastics without abrasive fillers O2 Fiber-reinforced plastic GFRP, AFRP O3, O5 CFRP O4 Graphite (technical) 65 O6 B 286 Centering Walter