Makita 8 Piece Electricians Bi Metal Hole Saw Set, supplied in a plastic case. Sizes carefully selected for the needs of the Professional Electrician. The Bi-Metal Holesaw range have a varied-pitch tooth design and are recommended for cutting steel, aluminium, copper, brass, wood and plastic. Also available in Plumbers kit with the most popular sizes. Arbours available with hex (3 jaw chuck) and SDS Plus shanks. Features and Benefits • Sizes carefully selected with the professional electrician in mind • Variable tooth pitch configuration • Fast cutting and long life • Ideal for cutting steel, aluminium, copper, brass, wood and plastic • Includes plastic carry case Contents • 16mm Hole Saw • 20mm Hole Saw • 25mm Hole Saw • 32mm Hole Saw • 40mm Hole Saw • 51mm Hole Saw • Arbors (x2) • Plastic Carry Case