STARRETT | 6 Piece Electricians Fast Cut Bi-Metal Hole Saw Kit | KFC06022Combines a new tooth material, with enhanced heat and wear resistance. New tooth design, providing a smoother, faster cut on a wide range of materials, when compared against the previous Constant Pitch saw. Specifically suited to cutting stainless and mild steel sheets, the Fast Cut will also cut through tubes with a wall thickness of up to 3mm (1 8 ). New tooth material for enhanced heat and wear resistance and greater product life. Ideal for