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Center holes of high precision are realized.

Features

• In order to improve positioning accuracy, overall length projection and shank tolerance has single edge.
• The cutting edge length （ℓ）is made as short as possible to increase toughness.
• The drill point has three rakes and X thinning design and it enables high speed and feeding.
• Increased centrality leads to great improvement of surface finish and circularity of center-drilled hole.