14579 - Stepped Drill Bit - 5-35mm

Drill multiple size holes with the one bit! You can drill through plastics, wood and un-hardened metals (such as aluminium or copper sheeting etc).  We have used these on 10mm timber, and no pilot hole was needed. A great benefit of using the step drills is all you need to do to de-burr the hole is drill a little bit further so that the next size up touches the hole! Made from high speed stainless steel (HSS), they will last for a very long time. 5mm -35mm