Item: BGTEC Diamond Core Drill Bit Set Hole Saw Kit Triangle Shank for Ceramic Tile Porcelain Pacage: Aluminum Case or Oxford Cloth Bag Specification: Set1--6/6/8/20/25/28/35/45/50/65mm drill bit+2'' chamfer bit+6mm hole opener--Aluminum Case Set2--6/8/10/20/25/32/35/50mm drill bit+1-3/8'' chamfer bit+6mm hole opener--Aluminum Case Set3--6/8/10/20/25/35mm drill bit+1-3/8'' chamfer bit+6mm hole opener--Oxford Cloth Bag Set4--6/6/20/25/35/50mm drill bit+4/5'' chamfer bit+6mm hole opener--Oxford Cloth Bag Set5--6/8/10/20/25mm drill bit+2'' chamfer bit+6mm hole opener--Oxford Cloth Bag Drill Bit(Triangle shank): Cross Hole Opener(Triangle shank): Diameter 6mm,Segment height 10mm,Workable length 35mm,Total length 77mm Chamfer Bit(Hexagon shank): Diameter 20mm; Work length 20mm; Total length 50mm; Grit #80,Bevel degree 56° Diameter 35mm; Work length 35mm; Total length 65mm; Grit #80,Bevel degree 53° Diameter 50mm; Work length 43.5mm; Total length 70.5mm; Grit #80,Bevel degree 60° Application: 1. For Porcelain Tile, Ceramic Tile, Marble, Granite, etc; 2. Dry or wet use. Feature: 2. U-slot design: Four U-slots in the top of the drill head, expel debris and heat 3. Versatility: Driiling & Enlarging & Grinding & Beveling 4. Vacuum brazing technology: Provides longer working life. Note: Do not use shock mode!