High speed steel (Pilot drill bit) material; 1-1/4 inch Min. Hole saw size; 2 inch Max. Hole saw size; 5/16 inch Shank size; Yes supplied with pilot Drill; Hex, 3-flat shank shape; chuck size 3/8 inch
The best arbor in the industry ensures a solid connection without any gaps or wobbling. Arbors include replaceable high speed pilot drill. Pilot drills have unique split point tip design. Use with Greenlee bimetal hole saws, recessed light hole saws, and carbide grit hole saws (carbide tipped pilot drill sold separately). Can be used with Greenlee #901, #902 and #904 bit extensions.