Luckyway 3-piece hole saw mandrel, fits 3/4 inch to 6 inch diameter, including 7/16 inch and 3/8 inch shank hole saw arbor and 3-piece 1/4 inch HSS (M2) central drills

Dimensions - includes 1 x 3/8 inch hex shank arbor with central drill, 1 x 7/16 inch hex shank arbor with central drill, 1 x HSS(M2) central drill. Application - This hole saw arbor fits most brand 3/4 to 6 inch hole saw such as Dewalt, Bosch, Milwaukee, Cle-Line etc. As long as the hole saw can fit 1/2 thread with 2 pins. Material: 45 carbon steel for arbor, high speed steel (M2) for central drill. Features: pins lock the saw to prevent over tightening and prevent threads from stripping.