Features:

--100% brand new and high quality.

--This diamond coated core drill bit removes a complete circle fromglass, tiles, marble, granite, ceramic or other.

--Materials and only needs water for lubrication.

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

--Can be used with a standard electric drill.

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

Specifications:Size: 3-200MM

Quantity: 1PC