Dry Diamond Drill Bit Set,BRSCHNITT 5pcs 1/4,5/16,3/8 inch Masonry Drill Bits with Triangle Shank for Porcelain Tile Ceramic Stone Granite Marble,Dry($15.99Value)

Description

Size --4pcs diamond drill bit6/6/8/10mm&1pc Carbide Drill bit,1/4"(6mm), diamond height 8mm, total length 65mm,triangle shank diamond core drill bit Widely Use--Carbide Triangular Drill bit mainly used to provide accurate positioning for diamond 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 High Performance --Special design of spiral groove at the top of bit helps for chip removal,Wax inside the drill bit helpful for Cooling and Lubrication Machine --Suitable for any electric drill,hand drill,Bench Drill, When use Angle Grinder,please install angle grinder drill chuck，Recommend RPM: 2000-5000.The faster the better(Cannot be used on machines below 2000 rpm).