3 pieces 7/8" inch Kent Diamond Coated Core Drill Bits Hole Saws
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.
Size: 5/16" shank, 2-1/8" Overall Length.
For Best Results:
Always use lubrication ( water ), otherwise the diamond core drill bit will burn.
Start your hole diagonally, make a round trace and then hold drill straight.
( GLS - 278 )