401070 401060 401060030 401060040 401060050 401060060 401060080 401060100 401060120 401070040 401070050 401070060 401070080 401070100 276 l1 l2 d2 d1 d3 l3 l1 l2 d2 d1 d3 l3 CONTACT INFORMATION For more information please call +1 330 928 7744 or send an email to ataorders@atatools.com Use: For through holes for screws DIN-ISO 273 and countersinks to DIN 74, sheet 1 form A, medium grade. For screws to ISO 2009, 2010, 7047 (DIN 963, 964, 966). Suitable for holes with simultaneous countersinking in profile material. Use: The hole and countersink are produced in one operation and are precisely aligned making for sturdy and tight concentricity tolerances. Suitable for NC machines due to the high positional accuracy, excellent centering properties, and great sturdiness of the drill. The preceding centering operation can often be omitted. Designed for thread tapping drill holes to DIN 336 sheet 1 with 90° countersink. In the following operation, the tap does not have to cut into the sharp edge of the hole. APPLICATION KARNASCH NORM HSS-XE stub jobber drills for tapping holes, 90° countersink PROPERTIES HSS-XE steel Made of high-alloyed specialty steel 'XE' for considerably longer tool life than HSS-steel. For countersinking in materials: • High-alloyed chromium steel such as stainless (V2A – AISI 304) • Steel • Cast iron • Non-ferrous metals Through hole with counterbore for screw head drilled in one operation. Alu Steel Stainless Copper, brass, tin Plastics GRP/CRP Gray cast iron HSS-XE stub subland drill with long drilling step for through holes 90° Art. For thread d1 h8 mm d2 h8 mm d3 h8 mm L3 mm L2 mm L1 mm M 3 I 2.5 3.4 3.4 8.8 20.0 52.0 M 4 I 3.3 4.5 4.5 11.4 24.0 58.0 M 5 I 4.2 5.5 5.5 13.6 28.0 66.0 M 6 I 5.0 6.6 6.6 16.5 31.0 70.0 M 8 I 6.8 9.0 9.0 21.0 40.0 84.0 M 10 I 8.5 11.0 11.0 25.5 47.0 95.0 M 12 I 10.2 13.5 13.5 30.0 54.0 107.0 Art. For thread d1 ± 0.05 mm d2 h8 mm d3 h9 mm L3 mm L2 mm L1 mm M 4 I 4.3 8.6 8.6 30.0 55.0 110.0 M 5 I 5.3 10.4 10.4 30.0 55.0 110.0 M 6 I 6.4 12.4 12.4 30.0 55.0 110.0 M 8 I 8.4 12.5 16.4 30.0 70.0 110.0 M 10 I 10.5 12.5 20.4 30.0 70.0 110.0 1441 Cutting data Movie STUB SUBLAND DRILLS < 900 N < 900 N > 10% Si HSSXE HSSXE DIN 1897 118° 118° Z 2 Z 2 90º 90º l3 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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