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118º Split Point (crankshaft point)
Running below the optimum speed will cause chipping
Delta Point tip design required a revolutionary re-think of drill tip function
Thin cut off discs reduce wastage
The right hand spiral forces the swarf out of the hole and prevents the chips from clogging at the bottom of the hole or in the flutes
Saber Spiral Flute Step Drill Saber Spiral Flute Step Drill:Saber 4-30 x 2mm Spiral Flute Hex Shank HSS Step Drill 118º Split Point (crankshaft point)Saber step drills are ideal for electrical contractors, sheetmetal workers and auto mechanics. 1 4" hex shank for fast tool changing in impact drivers and quick change adaptors. Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglas, laminates and many other thin materials. Manufactured from premium quality high speed steel with double fluted ground cutting edges for long service
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