Electrician's Hole Saw Kit, 8 Piece

Six bi-metal hole saws in the sizes an electrician actually drills — 7/8" through 2-1/2", which covers single conduit runs up to a 2-1/2" penetration — with both arbors and a case to keep them in. Bi-metal teeth with an M3 cutting edge and a positive rake go through stud, plate, plywood and the occasional nail plate without changing tools, and the 1-15/16" cutting depth clears a 2x4 in a single pass. If you need 3" and above, the Master Electrician's kit adds four larger saws. Both arbors are included: ARB-2 (3/8" hex, fits 9/16" to 1-3/16") and ARB-5 (7/16" hex pin, fits 1-1/4" to 6").