10 Pc 4mm Diamond Coated Drill Bits Set Hole Saw Cutter Tool Glass Granite Tile

Detail: * brand new and high quality *Made of high-quality materials durable *Diamond coated drill bits can work well on a variety of materials such as ceramic tiles and ceramic tiles (including walls and floors) glass plates fish tanks aquariums marble granite ceramics porcelain bottles quartz sinks Stucco rock slab etc. *Diamond particle coating has excellent performance and service life *Do not use in dry heat these diamond coated tools are most effective if you keep the tools cool with water. Specifications: *Material: Diamond *Size: 4mm *Color: as picture show *Quantity: 10 pieces Package include: *10*4mm diamond drill bit Tips: *Please add water as coolant and drill slowly *Start drilling to the surface at an angle of 45 degrees and align 90 degrees according to the form of the hole *Do not use an electric drill when the machine is hammering. *The hole is clean no further processing is required Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.