Description: This diamond coated core drill bit removes a complete circle from glass,tiles,marble,granite etc. Materials and only needs water for lubrication;Can be used with a standard electric drill. Always use lubrication (water), otherwise the diamond core drill will burn. Start your hole diagonally, make a round trace and then hold drill straight. Opening neat,smooth,no broken edges,small incision resistance,opening fast, easy chip advantage Specification: How to use your Holesaw : In an ideal world your piece of work should be clamped firmly to a bench to allow for slow controlled drilling. Of course sometimes that's just not possible, so if you're drilling in situ or at an awkward angle try the following : Make a template from a piece of timber or waste material, locate this over the area where you want to drill your hole and use it as a "guide" to start the hole. Once you've got into the surface by 1mm to 2mm you can remove the guide and continue to drill in a controlled manner. Start your hole diagonally, make a round trace and then hold drill straight. Package Includes: 1 x Diamond Holesaw
