RUKO spiral step drill 12mm high speed steel

[Features] ● High-quality materials are used, allowing stable drilling without stress and chattering.

[Use]
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[Specifications] ●Total length (mm): 65 ●Step width (mm): 4 ●Shank diameter (mm): 6 ●Number of steps (steps): 9 ●Drilling dimensions (φ): 4, 5, 6, 7, 8, 9, 10, 11, 12

[Specification 2] Non-coating

[Material/Finish] High speed steel

[Set contents/accessories]
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【Note】
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