Dwd Posted April 17 Report Share Posted April 17 I found these heavy duty masonry bits in an old Milwaukee hammer drill case. The logo stamp is "OP" (see pic). Anybody know what brand that is? More importantly, what brand drill will they fit in? The shank diameter is 0.680" and is smooth, round, no flats. Quote Link to comment Share on other sites More sharing options...
Eric - TIA Posted April 19 Report Share Posted April 19 Very cool find but not sure who makes them. Quote Link to comment Share on other sites More sharing options...
wingless Posted April 20 Report Share Posted April 20 Welcome to the forum. The logo is Chicago Pneumatic. No idea on the applicable tool. 1 Quote Link to comment Share on other sites More sharing options...
Dwd Posted April 20 Author Report Share Posted April 20 Thanks! There's a big crew rebuilding an overpass nearby. Might ask 'em what they fit. Quote Link to comment Share on other sites More sharing options...
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