Specifications: Material: High quality steel, diamond dust coating. Color: Silver. Diameters Sizes: 8PC: 6/8/10/12/14/16/18/20mm. 10PC: 6/8/10/12/14/16/18/20/22/30mm. 11PC: 6/8/10/12/14/16/18/20/22/25/30mm. 15PC: 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50mm. 14PC: 3/5/6/8/10/12/16/18/20/30/40/50/60/70mm. 16PC: 6/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50mm. 3-200mm Sizes: 3mm,4mm,5mm,6mm,8mm,10mm,12mm,14mm,15mm,16mm,18mm,20mm,22mm, 25mm,26mm,28mm,30mm,32mm,35mm,38mm,40mm,42mm,45mm,48mm,50mm, 53mm,55mm,60mm,65mm,70mm,75mm,80mm,85mm,90mm,95mm,100mm,105mm, 110mm,115mm,120mm,125mm,130mm,140mm,150mm,160mm,170mm,180mm,200mm. Applications: It is perfect for glass, marble, tile, fiberglass porcelain tile ceramic, slate marble, granite light stone. Great tool for any DIY lover working at kitchen, bathroom, shower to dealing with ceramic, porcelain tiles, glass and marble. Note: Please make sure that water must be added during drilling to prevent drill burning. Lower drill speed, its inner pressure and improve the use of water lubrication to extend the life of these hole saws. Package Included: The quantity purchased will prevail.