High-Quality Slotted and Fluted Steel Barrel – Allowing for fast waste removal, ensuring cleaner, faster drilling whilst prolonging the lifespan of the core drill Laser-Welded Castellated Rooftop Segment - Engineered for precision and durability, the high diamond grit concentration and rooftop segment design ensure faster, more accurate drilling Fast and Accurate Drilling Experience - Designed to offer fast drilling speeds through a range of masonry building materials without compromising on precision or accuracy 11 Piece Set with Carry Case - The Mexco DCXCEL Slotted Dry Core Drill 11 Piece Kit includes 38mm, 52mm and 117mm drill sizes; the Core Drill set comes organised and protected in a robust plastic and aluminium carry case for added convenience Applications - The Mexco DCXCEL range is optimal for drilling precise, clean holes in various masonry and building materials including soft/medium faced bricks, concreate blocks, sandstone, soft slate and breeze blocks