Dry Diamond Drill Bit Set,BRSCHNITT 5pcs 5/16 Inch (8mm) Diamond Hole Saw Core Drill Bit for Porcelain Tile Ceramic Stone Granite Marble,Hex Shank Dry Drilling Diamond Core Drill Bit Kit-Fast Shipping

Description

Size –5pcs/pack,5/16″(8mm), diamond height 10mm, total length 80mm,hex shank diamond core drill bit

Wide Applications –Diamond core bits are worked great for dry drilling holes through hard porcelain tile, ceramics,bathroom tile,granite & marble, masonry, concrete, glass, hard plastic with ease. Using water could prolong the lifetime

Super Quality Raw Material –Using vacuum brazed technology ,which increases resistance to temperature and friction,to make the diamond particles better attach to the core steel,imporve the performance and with high grade diamond grit for effortless cutting and improved durability in tough -quality core steel body helps to be more efficient and durable, not easy to deform

High Performance –Wax inside the drill bit helpful for Cooling and Lubrication,can be used without water to increase life

Machine –Suitable for any electric drill,hand drill,Bench Drill, When use Angle Grinder,please install angle grinder drill chuck