Attach to the shank of a drill bit to extend its reach. To attach the one-piece extension, insert a drill bit into the extension and tighten the knurled collar. Compatible across the range of hole saws. For contractors who need to quickly change from one hole saw to another, including electrical, plumbing, siding, door, flooring and marine.
Attach to the shank of a drill bit to extend its reach. To attach the one-piece extension, insert a drill bit into the extension and tighten the knurled collar. Compatible across the range of hole saws. For contractors who need to quickly change from one hole saw to another, including electrical, plumbing, siding, door, flooring and marine.