GUHRING NC spotting drill F557 shank diameter 3mm center hole angle 90°

[Features]● The web is thin, so thinning is not necessary even when polishing. ●Because the chisel width is extremely short, a sharp conical center hole can be removed. ● Centering and chamfering can be performed in one process.

[Use] ●Cover materials: general structural steel, carbon steel, alloy steel, special hardened steel, stainless steel, aluminum alloy, cast iron. ●Positioning processing. ●Hole chamfering.

[Specifications] Shank diameter (mm): 3 Total length (mm): 46 Center hole angle (°): 90 Blade shape: Single edge Surface treatment: Fire coating

[Specification 2] Number of blades: 2

[Material/Finish] Kosoku steel (HSS)

[Set contents/accessories]
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【Note】
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