This Coil Cutter Kit is for use with a DREMEL only. See below for specifics. Kit includes: Aluminum 6" long coil holder block and steel top plate for holder; Saw blade, guard for Dremel with adapter bushing, 1 saw arbor to fit 3/8" hole blades. Coils to be cut can be up to 4 inches long and 7/8 inch (22 mm) in outside diameter. Coils may be made of 12 through 30 gauge wire. (NOTE: Does not fit battery-powered, cordless or very old Dremels). We use a Dremel 200 here in our shop.