This heavy duty diamond coated segment core saw with drill bit removes a complete circle from rock, granite, marble, tile, porcelain, concrete and other materials, tnd only needs water for lubrication.

Pilot Drill Bit Height is adjustble or drill can be removed

Size: 1-3/4" 45mm Outside diameter, 3/8" shank, 2-1/2" cutting depth. Overall Lenght: 4-1/4"

Always use lubrication water , otherwise the diamond core drill will burn.

Start your hole diagonally, make a round trace and then hold drill straight.