15pcs/set 6mm-50mm diamond coated hole saw drill bit cutter core shaft tool kit for ceramic porcelai
--100% and high quality.
--this diamond coated core drill bit removes a complete circleglass, 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.
quantity: 15 pcs
1 x 15pcs diamond coated hole saw drill bits