Stepped drill bit, spiral
Stepped twist drill HSS TiAlN Ruko
TWSTSTEPDRILL-RUKO-101051F-HSS-D4-20
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The deep-ground and spiral groove offers absolute smoothness and high cutting performance. In particular, non-breaking chips are transported away cleanly as with a twist drill bit. This reduces the formation of built up edges and cold welds on cutting edges. The taper facilitates retraction in drilled-through sheet metal.
Min./max. drill diameter | 4-20 mm |
Shank diameter | 8 mm |
Shaft length | 21 mm |
Length | 75 mm |
Shank style | 3-face shank |
Surface | TiAlN |
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