GUHRING NC spotting drill F557 shank diameter 12mm 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): 12 - Overall length (mm): 102 - Center hole angle (°): 90 - Blade shape: single-edged - Surface treatment: Fire coating

[Specification 2] Number of blades: 2

[Material/Finish] Kosoku steel (HSS)

[Set contents/accessories]
-

【Note】
-