Lot of three vintage masonry hand drill bits. Includes one 5/8” bit marked with diamond logo, one 1/2” bit marked Mayhew USA, and one 3/8” bit marked Wood Brothers Philadelphia (partially worn marking). Solid steel construction for use with hand braces or hammer drilling in masonry and concrete. Condition: Used with age and shop wear. Surface rust, patina, and wear to cutting edges. All markings described to best of visibility. See photos for complete details.
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