JACOBS CHUCK DRILL HARTFORD CONN PAT. SEPT 16 1902 WORKS SMOOTHLYi think u can fit the smallest drill bit up to 3/8"the top opining hole can fit 3/8" =0.37" = almost 9.5mm
good used thru coolant drill Cle-Forge USA 1 37/64" x 15 1/4" long please check my other auctions and happy bidding! we are always happy to combine items for cheaper shipping Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.
Cant read most of the lettering on the case label, the title is what is listed on the drill bit. On the label all I can make out is 31xxx and what looks like 32361.
Taper taps have 8 to 10 threads for easy starts in tough materials. Four flute design on all taps ensures fast and easy chip clearance. High carbon steel pipe taps are ideal for pipe fittings, cutting internal threads and wherever an extremely tight fit is required.
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