Diamond Finger Milling Bits BRSCHNITT 2pcs 10mm 25mm Dry Core Drill Bit for Enlarging Shaping Existing Holes of Porcelain,Hard Ceramic,Granite,Marble Hole Saw with M14 Thread

✔Cost Effective--You could use only one size core bit and this finger bit to create different size of holes,which will save your money greatly! ✔Applicatio】 Multifunctional use--Reaming, hole shaping, side grinding and other functions，Used for hole processing of Ceramic Tile, Porcelain Tile，Marble, Granite and other materials; ✔【Tips】 It is not recommended to drill as a drill bit; It is mainly to enlarge the formed hole or process the hole with special shape; ✔Size --diamond finger bit Diameters：3/8"(10mm)-1"（25mm）, 50mm workable length, M14 Thread, Grit:#50/60, toal Length 65mm. ✔Machine--Angle Grinder with M14 Thread.