Cobolt Hole Saws

This variable pitch hole saw kit is manufactured from heavy-duty steel with 8% cobalt for extra strength and performance. Suitable for cutting holes in steel, brass, bronze, cast iron, aluminium, wood and plastics. Maximum cutting depth 38mm. Hole saw sizes 20, 22, 29, 35, 38, 44, 51, 57, 64mm (diameter). Kit includes 14-30mm and 32-152mm hex. arbors and 4mm hex. key. Supplied inside a blow moulded plastic storage case. 9 x Cobalt hole saws - 20, 22, 29, 35, 38, 44, 51, 57, 64mm (diameter)1 x 14-30mm Hex. arbor1 x 32-152mm Hex. arbor1 x 4mm Hex. key Cutting depth: 38mmPitch: 4.5-5tpi