New 3 pieces of 16mm ( 5/8" ) Diamond coated hole saw / drill bits. 

The size is 16mm outside diameter and 6mm shank, can drill 30mm depth. 

Suitable for use in drill hole on glass, marble, tile or granite.

Please add water for coolant and drill slowly.

THK® specialized in wide range of diamond tools, nuts & bolts, bits, saws and machinery etc. Our products are quality assured according to the advanced technology applied and strictly control the quality of raw materials. We supply many of the mainstream Construction Companies right here in Hong Kong. Our products are in use at many of the larger projects such as the HK airport and HK Disney Land.