Desic Diamond Core Drill Holesaw With Pilot 55mm PTB2B-B T40 1/4" Hex Shank Square

T40 1/4" Hex Shank Square Insert Bits SQ1

smooth arc action

TM9042-00701| ITM Lever Hoist

kerbs and slabs

Superior-quality countersinks and deburring tools at very competitive prices

Desic Diamond Core Drill Holesaw With Pilot 55mm PTB2B-B T40 1/4" Hex Shank SquareThese are good for a variety of trades where you need to make a big hole in materials that are normally difficult to drill. The metal bonded diamond segments last a lot longer (about 50x more) than diamond coated holesaws because the diamonds are embedded throughout the segment and fresh ones are exposed as the bonding metal wears away. The replaceable pilot drill gets the hole in the right place in materials where you'd normally use a masonry drill.