Used to extend threaded drill bits, pilot cutters, or any other cutter with a 1/4-28 thread. Has a 1/4" Hex Drive on the shank end to fit a drill or screwdriver, and a 1/4-28 internal (female) thread at the other. 10" extension length.
Bends 5/16" diameter aluminum and copper tubing. Bend radius is 11/16". Open side type which slips over tube at any point. Makes smooth short radius bends up to 180°.