The HMT 101030 VersaDrive TCT Holecutter Set with at least 10 times longer lifetime than Bi-Metal Holesaws The HMT 101030 Set is a handy cased set of 3 ultimate Holesaws in 14mm, 18mm and 22mm. A highly versatile Tungsten Carbide Holesaw system for use with a range of power tools including hand drills, Magnet Drills and Pillar Drills. The perfect tool for fabricators and steel erectors needing to drill through heavy steel in locations that aren\'t suitable for a magnetic drill. The extended length makes the VersaDrive TCT Holesaw ideal for drilling into steel through existing holes.  Features: Premium quality Tungsten Carbide Teeth for ultimate tool life 10x greater than standard bi-metal \"starret\" type holesaws Use in any standard drill chuck Use with the VersaDrive Magnet Drill adapter to convert to a broaching cutter Use with the MultiSink tool to broach and Countersink in one operation Massive 70mm reach with 55mm depth of cut, ideal for drilling channel, box section and thick steel Premium quality Tungsten Carbide Teeth for ultimate tool life Perfect for drilling heavy steel in locations that aren\'t suitable for a magnetic drill High strength, non-slip shank design Use in any standard drill chuck or with a magnet drill adapter Combine with the MultiSink Tool to broach and countersink in one operation Non-slip 11.0mm hex shank is standard on all Versadrive tools 55mm internal depth of cut on all sizes of holesaw Specification: 3 Piece Set Sizes: 14mm, 18mm, 22mm