Diamond Coated Drill Bits Set

Made of high quality carbon steel with diamond coated, corrosion resistance and durable.

The diamond hole saw was processed by a smooth and exact finish that lower resisting force to the minimum, increase the sharpness to drill precise holes in seconds.

Diamond drill bits start the hole diagonally, make a round braid and then hold drill straight. Water is required for lubrication when drilling.

Widely use of drilling glass, tile bottle, ceramic tile, brick, stone, granite and so on. 30pcs set meet most of your different needs.

Features:

Material: Emery

Size: 6/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50mm

Quantity: 30pc

Includes:

15pcs*6mm

15pc*6/ 8/10/12/14/16/18/20/22/25/28/30/35/40/45/50mm

Applicable industry: ceramic processing

Features: sharp and durable, high work efficiency

Packing list:

1 set/30pcs