Builders Depot carries a wide range of drilling accessories for core drilling. We stock drill bit extensions, reducer couplings and adapters, portable water containers, wet/dry vacuums, and whatever else is needed to
Long Masonry Diamond Hole Cutter, 10Pcs 35-110m TCT Core Drill Bit Set Hole Cutter Core Drills with 4-pits Round Arbors and Square Extension Shank for Drilling Concrete Cement Stone : Amazon.co.uk: DIY