38mm, 52mm, 117mm diamond core drills for fast, clean cutting and drilling in masonry, bricks and blocks. Suitable for wet and dry cutting. Supplied with accessories and carry case. Suitable Drilling Applications: masonry, bricks and blocks. Not suitable for hammer/ impact function during drilling. Wet & Dry Use. Core Sizes: 38, 52, 117mm. 38, 52 & 117.