QUICK CHANGE D'VERSIBIT SYSTEM KIT by Greenlee

All the same great featuresas a traditional flexible drill bit, but with even more flexibility and versatility. Simplifies the frustratingand time-consuming process ofinstalling wire or cable inside existing walls. For use when drilling between studs and joists. Can use with any type of bit with a 1/4 IN quick change hex on it, such as spade bits,auger bits or drill bits for increased application flexibility. Replace only the bit as itwears rather than the entire bit and shaft for lower overall cost of ownership. Quickly and easily switch from drilling to pulling with the quick change pulling grip,No more fiddling with hookinga pulling grip to the bit.