Solid carbide HPC co-pilot drill Garant Spiral fluted, with 4 guide chamfers and internal cooling channels New generation of high performance co-

Solid carbide HPC co-pilot drill Garant Spiral fluted, with 4 guide chamfers and internal cooling channels. New generation of high performance co-pilot drills in the HPC range. With 138° point angle and special j6 cutting edge tolerance for optimum generation of a co-pilot hole. High roundness and alignment accuracy of the co-pilot hole. Plain shank DIN 6535 HA 123691 Weldon shank DIN 6535 HB 123691 + 129100HB Whistle-Notch shank DIN 6535 HE 12 3691 + 12 9100HE Note To achieve good process reliability with 40xD and 50xD deep-hole drills it is absolutely essential to drill a 6xD pilot hole with pilot drill No. 12 2736 and a 20xD co-pilot hole with co-pilot drill No. 123691. The generation of a pilot hole increases process reliability. See pages 92 / 93. See for further details Versions with HB and HE shank available without surcharge. r Tl Form HB add product code No. 1291OOHB. r l Form HE add product code No. 129100HE. (See catalogue page 18 for ordering example). Pilot drill 122736 Suitable for/ vc m/min Alu plastics pmu Alu cast >10% Si <500 N <750 N <900 N <1100 N <1400 N 2 <2c 900 N Ti >850 N GG(G) CuZn i Uni > max min Air ISO code N P H K N 12 3691 - 105 90 90 90 70 50 45 95 1 1 0j6 mm 123691 I jfccarant11 Solid carbide co-pilot drill plain shank DIN 6535 HA TiAIN j mm s Uot mm T h5 mm <900N f mm/rev 3 80 120 6 0.05 4 90 130 6 0.08 4,2 110 160 6 0.08 4,5 110 160 6 0.08 4,8 120 160 6 0.08 5 120 160 6 0.08 5,5 140 185 6 0.12 5,8 140 185 6 0.12 6 140 185 6 0.12 6,5 160 210 8 0.12 6,8 160 210 8 0.12 7 160 210 8 0.12 7,5 180 230 8 0.12 7,8 180 230 8 0.12 8 180 230 8 0.12 8,5 195 260 10 0.15 8,8 230 290 10 0.15 9 230 290 10 0.15 100 Main catalogue Hoffmann Group 46 Solid carbide Standard GS 20xD j6 138' DIN I 6535 HAHBHE 40 bar HPC