303 25, 50 mm 8 mm 30, 40, 50 mm 30, 55, 80, 110 mm 1", 2", 3" ANNULAR CUTTERS Overview annular cutters Weldon shank Overview twist drill Weldon shank TYPE Specification Application 12-60 mm Annular cutters made of HSS-XE special steel + GOLD-TECH treatment The most popular uncoated annular cutters used for all steels up to 900 N and are suitable for stainless steel materials. 344-359 12-60 mm Annular cutters made of HSS-XE special steel + 7 different cutting geometries Developed for all steels up to a strength of 750 N. 360-365 8-25 mm Annular cutters / hole saw combination Designed for all steels up to a strength of 900 N. 366-367 TYPE Specification Application 4-32 mm Twist drills made of powder steel / HSS-XE steel / HSS-Cobalt Steel Engineered with and without inner cooling holes for steels up to a strenght of 1400 N and for all stainless steel materials. 368-373 Copper, brass, tin Copper, brass, tin Copper, brass, tin Alu Alu Alu Stainless Stainless Steel Steel Steel < 750 N < 900 N < 900 N < 900 N < 900 N < 10% Si < 10% Si < 10% Si Copper, brass, tin Alu Gray cast iron Stainless Steel < 1400 N > 900 N > 10% Si Drill depths Drill depths Drill depths Drill depths Drill depths OPTIMAL GOOD POSSIBLE Hardox 400 Hardox 450 Hardox 400 7/16 to 2-1/16" GOLD-DRILL LINE SILVER-DRILL LINE MINI-LINE DRILL-LINE GOLD-DRILL LINE INCH 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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