22mm grana diamante seghe punta trapano per Vetro Ceramica Porcellana piastrella
Description:1. Diamond coating maximizes performance and retains a sharper cutting edge than traditional carbide or bimetal hole saws.2. Side holes allow for easy slug removal after drilling. Perfect for cutting accurate holes in a wide variety of materials such as glass and ceramics.3. Nickel plating on Diamond Drill Bit maximizes your tool’s life with great resistance to corrosion.4. Works better with an electric drill or bench drill which is not included here. Please note:1. Start your hole diagonally, make a round trace and then hold drill straight.2. Always use lubrication (water), otherwise the diamond core drill will burn.3. Low drill pressure and increased use of water lubrication will extend drill bit life considerably.
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