IRWIN 7 Piece Bi Metal High Speed Hole Saw Set

7 Piece IRWIN® 400 SE Bi-Metal High Speed Holesaw Set. IRWIN bi-metal holesaws have been designed for the professional and made to provide long-lasting performance for use in general construction, electrical installation, plumbing, heating, ventilation, and remodelling applications. The sharp, variable tooth (4-6 pitch) design provides a faster cutting action and enhanced performance in a variety of materials and cutting applications. The bi-metal construction and the electron beam welded teeth give the user a stronger, longer-lasting blade. Supplied in a sturdy, zipped storage case. Contains: 4 x Bi-metal Holesaws: 22, 35, 65, 67mm. 1 x 10504536 Mandrel 9.5mm (14-30mm). 1 x 10504535 Mandrel 13mm (32-210mm). 1 x Pilot Drill.