201451 201451U 201471 201471U 633 10.5 7.0 14.5 16.5 12 mm 18.5 20.5 23.5 25.5 30.5 32.5 3 mm 6 mm 12.5 100 mm 10.5 7.0 14.5 16.5 12 mm 18.5 20.5 23.5 25.5 30.5 32.5 3 mm 6 mm 12.5 100 mm 7.0 10.5 12.5 14.5 12 mm 16.5 18.5 20.5 23.5 30.5 4 mm 6 mm 25.5 32.5 38.5 40.5 115 mm 7.0 10.5 12.5 14.5 12 mm 16.5 18.5 20.5 23.5 30.5 4 mm 6 mm 25.5 32.5 38.5 40.5 115 mm mm 12.5 16.5 20.5 25.5 32.5 40.5 M12 × 1.5 M16 × 1.5 M20 × 1.5 M25 × 1.5 M32 × 1.5 M40 × 1.5 mm 7 10.5 14.5 18.5 23.5 30.5 38.5 – M12 × 1.5 M16 × 1.5 M20 × 1.5 M25 × 1.5 M32 × 1.5 M40 × 1.5 I I I I mm 7 10.5 14.5 18.5 23.5 30.5 – M12 × 1.5 M16 × 1.5 M20 × 1.5 M25 × 1.5 M32 × 1.5 mm 7 12.5 16.5 20.5 25.5 32.5 – M12 × 1.5 M16 × 1.5 M20 × 1.5 M25 × 1.5 M32 × 1.5 Step drills with spiral for cable connections STEP DRILLS CBN GROUND · 2 CUTTING SPIRAL-FLUTED WITH SPLIT POINT Alu Alu Steel Steel Stainless Stainless Copper, brass, tin Copper, brass, tin Plastics GRP/CRP Plastics GRP/CRP Grey cast iron Grey cast iron APPLICATION APPLICATION Thread core hole step height 6 mm Thread core hole step height 6 mm Through borings step height 4 mm Through borings step height 3 mm PROPERTIES PROPERTIES HSS-XE steel + BLUE-DUR coated Made of high-alloyed special steel 'XE' for considerably longer service life than HSS-Steel. BLUE-DUR coating for a further substantial increase in service life also when machining dry (no/less cooling). The CBN ground and spiral flutes guarantee smooth running and high cutting performance. The chip flow is optimised and removed easily as with a twist drill. HSS-XE steel Made of high-alloyed special steel 'XE' for considerably longer service life than HSS-Steel. The CBN ground and spiral flutes guarantee smooth running and high cutting performance. The chip flow is optimised and removed easily as with a twist drill. 1590 Cutting data Movie < 1100 N < 900 N < 900 N < 600 N > 10% Si > 10% Si 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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