XIANFENGHU Dry Diamond Core Drill Bits Set, 1/4" Tile Hole Saws 5 PCS

[Diamond Drill Bit Size] The Diamond Core Drill Bits Set Total have 5 pieces, 4x1/4" (6mmdry diamond drill bits; 1/4" (6mmfour-edged carbide hammer drill bit uses YG6X cemented carbohydrate material blade drill bit to deliver faster drilling into masonry materials and longer life in concrete; Connection: with 1/4" hex shank drill bit, [Vacuum Brazed Technology] The Vacuum Brazed Hole Saw use Vacuum brazing diamond technology offers very high efficiency. High grade diamond grit for easy cutting and increased durability in demanding applications. High quality core steel body, more efficient and durable, not easy to deformation, [Support Dry Drill Holes] The Diamond Hole Saw inside of the drill is filled with cooling wax, which does not need to add water and supports dry drilling. When used, wax helps dissipate heat and remove chips, extending the service life of the drill, [Widely Used] Diamond core drill bits are worked great for dry drilling holes through porcelain tile, marble, bathroom tile, granite, ceramics, masonry, stone, glass, brick with ease. (Please note not suited for wood material, [Fit Most Tools] Dry Diamond Core Drill Bit can be used on Corded Drill, Cordless Drill, Bench top Drill, convenient for use.