HSS Premium Cobalt Bi-Metal Holesaws Variable pitched premium 8% cobalt holesaw for professional use • Features a smooth and fast cutting action • Precision set teeth for material penetration and swarf clearance • 38mm cutting depth • Will cut thin and thick gauge materials • Suitable for cutting aluminium, steel, stainless steel, brass, cast iron, wood and plastic • 8% cobalt for resistance and long life • Compatible Arbor - ZT1212658X