Diamond Core Drill Bit Set 11pcs Diamond Hole Saw Kit for Porcelain Tile Ceramic Marble Granite Stone,6/6/10/25/35/38/50/65mm +2" 5/8-11 Diamond Beveling Chamfer Bit +3/8" Diamond Finger Bit + Adapter - PaWuKi, PWSET11

• [Size Diamond core drill bit]--Total 8pcs,1/4" 1/4" 3/8" 1" 1-3/8" 1-1/2" 2" 2-4/7" (6/6/10/25/35/38/50/65mm), diamond height 10mm, total length 60mm, 5/8-11 thread tile drill bits,1pc SDS adapter [Size Diamond beveling chamfer bit& finger bit]--2"(50mm), 46mm workable length, 5/8-11 Thread, Grit #80, toal Length 55mm,Chamfer Angle:Top Angle 60 degree.finger bit:3/8"(10mm).45mm workable length,5/8-11 Thread,Grit #45/50, toal Length 70mm [Wide Application] --Worked great for dry drilling clean holes through porcelain tile shower walls, ceramics, bathroom tile,marble granite,stone,masonry,brick,stucco,counter top with ease,Using water could prolong the lifetime of the tile drill bits [Vacuum Brazed Technology] --Increases resistance to temperature and friction,provide 5x the working life compared with electroplated bits,more heavy duty and wear resistant.High-quality core steel body helps to be more efficient and durable,not easy to deform,you could drill smoothly with no broken edges [Machine] --angle grinder (direct connection) or electric drill (with adapter ).Aluminium portable suitcase included. For easy carry and storage and protect of the core bit.Recommended RPM is 6000. Maximum RPM is 11000