Designed for EXPERT PC Plus Hole Saws with a 60-mm cutting depth - The Pilot Drill for EXPERT PC Plus Hole Saws helps you drill pilot holes to guide your hole saw into position and prevent it from “walking”. It's designed for the EXPERT Power Change Plus keyless interface. Click it into your EXPERT Power Change arbor to guide your hole saws effectively. This keyless system does not require fixing with screws or bolts. You just pull one hole saw out and push another in. The EXPERT Power Change Plus still gives a firm connection: with a reinforced shank and close-fitting guide drill, it's more stable than hole saws mounted in the conventional way. We made the Pilot Drill for EXPERT Construction Material PC Plus from premium high-speed steel and ground it for strength and resistance to heat. You can use it to drill pilot holes when you cut holes in drywall, plastic, and wood with EXPERT Construction Material PC Plus. When you cut with the EXPERT Multi Material PC Plus, the pilot drill bit will help you drill through steel, wood with metal, and plastic. For use with the Bosch Power Change Plus keyless arbor: offering accuracy and robustness