15pcs Diamond tool drill bit hole saw set for glass ceramic marble 6mm-50mm

LOVESHOPP. 100 brand new and high quality. Made of electroplated diamond Perfect to eliminate a full circle of glass, tile, marble, granite, ceramic or other materials. Different sizes for you, make up a set, so that you no longer waste time to look for multiple specifications, stable and durable to use. The product is installed in a professional drill or electric drill. Can be used with a standard electric drill. You must add cooling holes for water during operation. This product is the efficient construction, installation hole of choice. Features. Easy to use, Good Performance and long life. Excellent for making clean and accurate hole on glass, tile, granite and marble. Works better with a electric drill not included). Use: apply to job openings fast glass, plastic sheeting, wood and other products. Specifications. Colour: Silver. Material: metal. Type 1:15PCS/SETS). Size: 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50 mm. Type 2:10PCS/SETS). Size: 3mm. 4mm. 5mm. 6mm. 8mm. 10mm. 12mm. 1