Yamawa starting drill shank 8 total length 79 center hole 90°

[Features] ● Used for chamfering. ● After drilling with a general-purpose drill, you can chamfer the finished surface beautifully by using a size larger than the hole diameter.

[Applications] Work Material: Carbon Steel, Alloy Steel, Tool Steel, Cast Iron, Copper Alloy, Aluminum Alloy. ●Hole chamfering.

[Specifications] Shank diameter (mm): 8 Total length (mm): 79 Center hole angle (°): 90 Blade shape: Single edge Surface treatment: TiN coating

[Specification 2]
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[Material/Finish] Cobalt Kosoku steel (HSS-Co)

[Set contents/accessories]
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【Note】
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