Drill Bits 14pcs Set 3-70mm Hole Drilling Kit Extractor Kit Removal Tools for Tile Porcelain Drill Holes

This product uses advanced natural material, with a special enhanced coagulation treatment from electroplating sand suction hole neat, , no broken edges, etc., is the efficient construction, installation hole of choice. The product is installed on a professional drill or electric drill, bench drill. Rpm 800‑1000 rpm or so, you must add water cooling holes during . This section openings glass openings, tiles can be opened, but just open a few holes in the opening, please add water, it will extend the life. Features: 100% High quality and Brand new. This product uses advanced natural material, with a special enhanced coagulation treatment from electroplating sand suction hole neat, , no broken edges, etc., is the efficient construction, installation hole of choice. This section openings glass openings, tiles can be opened, but just open a few holes in the opening, please add water, it will extend the life. The product is installed on a professional drill or electric drill, bench drill. Rpm 800-1000 rpm or so, you must add water cooling holes during . Use: apply to work openings fast glass, plastic sheeting, wood and other products. Size: 3mm Celsius 5mm Celsius 6mm Celsius 8mm Celsius 10mm Celsius 12mm Celsius 16mm Celsius 18mm Celsius 20mm Celsius 30mm Celsius 40mm Celsius 50mm Celsius 60mm Celsius 70mm  Package Includes: 14pcs Coated Hole Saw Drill Bits NOTE: 1 After opening installation, commissioning idling should observe whether the beating, then normal , the best results 2 Into the hole to have a time, please do not exert pressure on the side and curves spud 3 Have enough openings for cooling and lubrication to reduce wear and coating products off 4 Non occurrence of high temperature drilling dry rub, causing severe wear affect the results 5 The operator must wear protective equipment to confirm safe 6.