12mm Diameter Diamond Coated Core Drill Bit With Jagged Edge
This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication.
Can be used with a standard electric drill.
12mm outside diameter
55mm Overall Length.
Always use lubrication (water), otherwise the diamond core drill will burn.
Start your hole diagonally, make a round trace and then hold drill straight.
( GLS - 294 )