ATA Americas Product Catalog

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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