DHS4BITII Diablo 1/4 in Hole Saw Pilot Bit Diablos new, high performance hole saws deliver faster cutting performance and increased productivity. Unlike anything on the market, Diablo’s hole saw system and mandrel design simplify the attachment process for fast and efficient hole saw mounting. These radical new hole saws provide ultimate cutting length to bore deeper holes in a single pass, tool-free plug ejection and Variable Tooth Design for faster cuts. 60mm (2-3/8 in) cutting depth for deeper holes in one pass and increased productivitySnap-Lock mandrel system for a quick and easy change with no down timeOne-size fits all Mandrel fits all Diablo hole saws, from 5/8 inch to 6 inches in diameterTool free plug ejection for fast material removalVariable Tooth Design provides faster cuts with less vibration