With Special design of diamond brazing, For porcelain, glass, marble, ceramic, rock and granite etc.
High quality set is ideal for drilling clean and accurate holes. Cut perfect circles with these tools
Heavy duty hole saws gives superior performance.Durability is more than 8 times the ordinary drill bit
Electroplated diamond coating will wear off if the tool gets too hot. Never let your drill bit run dry.
Size:6/25" (6mm), 8/25" (8mm), 2/5" (10mm), 12/25" (12mm), 16/25" (16mm), 4/5" (20mm), 7/8" (22mm), 1" (25mm), 1 1/5" (30mm), 1 1/2" (38mm), 2" (50mm)