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 electricians kit with the most popular sizes. 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 • 20mm Hole Saw • 25mm Hole Saw • 32mm Hole Saw • 35mm Hole Saw • Arbors • Plastic Carry Case