WinningBore Step Drill Pyramid Drill 4-12mm

[Features] ● Sharpness is improved with the spiral cut system. ● Because it is a step, it can be used for many purposes. ●Different diameter holes can be drilled with a single tool. ●Convenient for deburring, enlarging holes, and chamfering. ● Center punch work is unnecessary.

[Use] ●Cover materials: iron (up to 2 mm), stainless steel (up to 1.6 mm), aluminum, copper, plywood, plastic.

[Specifications] ● Overall length (mm): 70 ● Number of steps (steps): 9 ● Step width (mm): 5 ● Shank diameter (mm): 6.35 ● Drilling dimensions (φ): 4, 5, 6, 7, 8, 9, 10, 11, 12

[Specification 2] Non-coating

[Material/Finish] Kosoku steel (HSS)

[Set Contents/Accessories] None

【Note】
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