Utoolmart 40mm Diamond Drill Bit Hole Saw for Tile Glass Marble Granite Fiberglass Ceramic Tool 2pcs

Specification: Product Name?Glass Hole Saw Color:Silver Material:Carbon Steel Drill Diameter:40mm Total Length:50mm;Wall depth:25mm Package Includes:2pcs x Glass Hole Saw Can be used for all kinds of glassware, glass door and window drilling ,hard plastic products,etc.Dedicated to glass opening .When positioning the drill,please wait a moment and then drill slowly. If there is any abnormality or chip removal during operation,please stop working immediately and clean the debris before continuing the drilling operation. Instructions for use of glass hole opener: 1. Put the hole opener into the electric drill before use and confirm that the clamping is firm before it can work. When entering the hole, it must be stable and do not apply side pressure and curve to drill. 2. Sufficient cooling and lubrication is required during continuous work, which has reduced the impact of product wear on use. 3. Workers need to wear corresponding protective equipment to protect workers from working safely.