201830 201840 201830002 I 3/32" 2.5 mm 201840002 I 201830004 I 9/64" 3.4 mm 201840004 I 201830010 I 11/64" 4.3 mm 201840006 I 5/32" 4 mm 201840010 I 201830020 I 13/64" 5 mm 201840020 I 201830030 I 15/64" 6 mm 201840030 I 17/64" 6.8 mm 201840035 I 201830040 I 9/32" 7 mm 201840040 I 201830050 I 5/16" 8 mm 201840050 I 21/64" 8.5 mm 201840055 I 201830060 I 23/64" 9 mm 201840060 I 201830070 I 25/64" 10 mm 201840070 I 13/32" 10.3 mm 201840075 I 201830080 I 7/16" 11 mm 201840080 I 201830090 I 15/32" 12 mm 201840090 I 373 Weldon Weldon 19 mm 50 mm Z 2 2.5 mm M 3 3.4 mm M 4 4.3 mm M 5 4 mm – 5 mm M 6 6 mm – 6.8 mm M 8 7 mm – 8 mm – 8.5 mm M 10 9 mm – 10 mm – 10.3 mm M 12 11 mm – 12 mm M 14 4 mm 3 mm 2.5 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm ADAPTER + TWIST DRILLS PROPERTIES The cobalt steel + TiN-coating further extends the tool life when machining dry (no or little cooling). Karnasch high-performance twist drills + the Weldon twist drill adapter are fast, inexpensive, and drill accurate holes. HSS-CO Cobalt + TiN coated twist drill, drill depth 50 mm Adapter Weldon shank For taps see Art. 20 1820, page 569. Alu Steel Stainless Copper, brass, tin Plastics GRP/CRP Gray cast iron APPLICATION Adapter Shank Twist drill Drill For thread Size < 1400 N > 900 N > 10% Si DRILL-LINE GOLD 50 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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