Drill bit and manufacture thereof

Details Drill bit and manufacture thereof Drill bit and manufacture thereof

G - Physics

09

F

77/30

G09F 3/08 (2006.01) B23B 51/04 (2006.01) B23P 15/40 (2006.01)

Patent

CA 1190066

DRILL BIT AND MANUFACTURE THEREOF ABSTRACT OF THE DISCLOSURE A deep hole drill bit comprises a solid rod or shank with a lubricant bore throughout its length and a longitudinal swarf clearance flute of at least 180°, a cutting tip attached to one end of the rod or shank with an aperture connected to the lubricant bore for outflow of lubricant and a holder attached to the other end of the rod or shank. The invention also includes methods of produc- ing such a deep hole drill bit.

428556

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