Brand new The Duro DSDC Dry Diamond Core Drill Kit is an essential tool for tradesmen who frequently use dry drills. This 5-piece kit includes a chuck adaptor, universal extension, guide rod, drift key, and a 350mm long pilot drill. With its BASE specification, this kit is designed for durability and high performance. Improve your drilling efficiency with this professional quality kit. Benefits: 8mm segment height Barrel slots Laser welded Use For: Hard York stone / London brick / General house brick / Handmade bricks / Facing bricks / Lightweight concrete block / Breeze-block Included: Core Sizes Included – 42, 52, 65, 117 & 127mm Accessories included – DURO PLUS chuck adaptor, sds adaptor, universal extension, guide rod, drift key & 350mm long pilot drill.