
Diamond Core Drill Bit Set 38mm 52mm 117mm SDS Masonry Concrete Wet & Dry Case. Core drills (38, 52 and 117mm), extension bar, SDS adaptor, hex adaptor, pilot drill and drift key. Professional quality diamond cores and accessories. For fast, clean cutting and drilling in masonry, bricks and blocks. Suitable for wet and dry cutting. Supplied with carry case. Wet & Dry Use. Steel Slotted Barrel to Aid Removal of Debris. For Use with 3-Jaw Chuck Machines on Rotary Action or SDS Plus with 38 & 52mm Core Drills. Suitable Drilling Surface Description.