Blast hole grooving bit and wear resistant compact

Details Blast hole grooving bit and wear resistant compact Blast hole grooving bit and wear resistant compact

E - Fixed Constructions

21

B

255/79

E21B 10/40 (2006.01) E21B 7/00 (2006.01) E21B 10/28 (2006.01) E21B 10/58 (2006.01) E21B 43/263 (2006.01)

Patent

CA 1152058

TITLE OF THE INVENTION BLAST HOLE GROOVING BIT AND WEAR RESISTANT COMPACT ABSTRACT OF THE DISCLOSURE A blast hole drill bit is disclosed for forming longitudinally extending grooves in already drilled blast holes, having a body with a forward face and a rearwardly extending pilot diameter. One or more radially extending wings are located at the rearmost part of the pilot diameter and are V-shaped when viewed in plan. Wear resistant compacts form a part of the wings and have a V-shaped cutting edge.

384354

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