factory direct sales 6pc woodworking flat drill suit double bubble shell punching drilling tapper processing three-pointed hexagonal handle

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brand: cr

shank type: contact customer service

cooling type (internal cooling/external cooling): contact customer service

cutting diameter (mm): contact customer service

shank diameter (mm): contact customer service

chip tank length (mm): contact customer service

useful length (mm): contact customer service

total length (mm): contact customer service

top angle of outer blade (°): contact customer service

material: no. 45 steel

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