Chrislynn is a Giant in the Helical Insert business.We stock large sizes of inserts and kits!  1 1/8-8 all the way to 3 1/2-8 and M26 x 1.5 to M48 x 3!              Kits contain a high speed steel STI tap, a combination installation/tang break-off tool and several standard length/free running inserts.  

Inch and metric bits, in two and six inch lengths, are available in a variety of sets covering sizes from 5/32″ to 5/8″ and 4mm to 17mm. ProHold® Socket bits are half the cost of traditional socket bits because the tool user can simply insert them into their existing six point sockets. Bondhus’ ProHold® Socket

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