220389 2203890350105 2203890450135 2203890600180 2203890650195 2203890700210 2203890800240 2203890850255 2203890900270 2203891000300 2203891100330 2203891200360 244 d3=d2 90° 142° = > 3-6 +0.004 +0.016 > 6-10 +0.006 +0.021 > 10-18 +0.007 +0.025 m7 > 3-6 +0.000 – 0.012 > 6-10 +0.000 – 0.015 > 10-18 +0.000 – 0.018 h7 Z 2 244 SOLID CARBIDE DRILLS CONTACT INFORMATION For more information please call +44 1530 261 145 or send an email to sales@atagarryson.com UNI STEEL < 1400 N/mm2 GJS HRC < 52 GTW GTS short chip GJL Recommended cutting data for solid carbide twist drill, without interior cooling supply Solid carbide pilot step drill 142°/90°. Designed for deep hole drill MICRO GRAIN KARNASCH NORM SPECIAL DIN 6535 Shape HA 30° 142° HSC HPC DVC-X2 Hole tolerance Hole tolerance Art. d1 h7 l3 = 3×D l2 l1 d2 h6 % 3.5 10.5 24 62 6 % 4.5 13.5 28 66 6 % 6.0 18.0 35 79 8 % 6.5 19.5 38 79 8 % 7.0 21.0 46 89 10 % 8.0 24.0 48 89 10 % 8.5 25.5 48 89 10 % 9.0 27.0 55 102 12 % 10.0 30.0 57 102 12 % 11.0 33.0 60 107 14 % 12.0 36.0 62 107 14 % Sale item. While stocks last. Alternative Tool: 22 0471 + 22 0473 on page 276 22 0402 + 22 0405 on pages 256-257 + 261-263 3×D in all dimensions Cutting data 1.1 St 42-8 < 450 100 0.18 0.25 0.30 1.2 C 50 < 650 90 0.18 0.25 0.30 2.1 51 Cr V4 < 600 70 0.15 0.20 0.28 2.2 26 Cr Mo 4 < 950 70 0.15 0.20 0.28 2.3 100 WV 4 < 1,100 60 0.15 0.20 0.28 2.5 34 Cr Al 6 < 1,000 60 0.15 0.20 0.28 2.6 31 Cr mo V9 < 1,200 70 0.15 0.20 0.28 3.1 X 42 Cr 13 < 700 70 0.15 0.20 0.27 3.2 S 29 28 < 1,400 40 0.08 0.12 0.15 7.1 GG 15 < 180 HB 100 0.24 0.32 0.42 7.2 GG 30 < 350 HB 100 0.24 0.32 0.42 7.4 GGG 60 < 200 HB 90 0.20 0.25 0.35 7.6 GTW 3504 < 230 HB 90 0.20 0.25 0.35 8.1 Toolox 44 44 HRC 30 0.08 0.09 0.10 12.0 Hardox 400 < 1,350 25 0.08 0.12 0.15 12.1 Hardox 500 < 1,800 20 0.08 0.12 0.15 Material Work material Strength Cutting speed group N/mm2 Vc (m/min) 3 - 5.5 6 - 8.5 9 - 12 ±10% f = mm/rev f = mm/rev f = mm/rev 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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