BRSCHNITT Diamond Drill Bit Triangle Shank 1/4"*2,5/16",3/8",1/2"- Head Eccentric Drill Bit 1/4" Masonry Drill Bit for Porcelain Ceramic Tiles Glass

BRSCHNITT Diamond Drill Bit Triangle Shank 1/4"*2,5/16",3/8",1/2"- Head Eccentric Drill Bit 1/4" Masonry Drill Bit for Porcelain Ceramic Tiles Glass

Size --1/4"+5/16"+3/8"+1/2", diamond height 8mm, total length65mm,Triangle shank,diamond grit #50/60 of diamond core drill bit Size：1/4"(6mm), Carbide Head Eccentric Drill Bit height: 9mm, Working Length:54mm,Total length 90mm,Triangle shank, Recommended RPM:2000-6000 Wide Applications --Diamond drill 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 Wide Application：Carbide Tipped Drill Bit-Dry Use (softer materials): wood, plastic (PVC pipes), foam tiles, antique tiles, glazed tiles, bricks, cement, concrete (need to avoid steel reinforcement),Wet Use (harder materials): glass tiles, porcelain tiles, ceramics, marble, glass, etc; Machine:Suitable for any electric drill,hand drill,Bench Drill, When use Angle Grinder,please install angle grinder drill chuck