Bit for electric drills

Details Bit for electric drills Bit for electric drills

B - Operations, Transporting

23

B

77/30

B23B 51/00 (2006.01) B27G 15/00 (2006.01)

Patent

CA 1082953

ABSTRACT OF THE DISCLOSURE: The present invention relates to an improvement for a bit which is employed by attaching to an electric drill. Namely, in the present invention there are disposed oppositely each other on a shank a cutting blade with no relief and a post which prevents a center swing and is of a small diameter with an equivalent amount to a cutting-in amount reduced.

300299

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