Product description

Instructions for use:

1. when for drilling, first locate at a 45 degree angle, and then slowly turn to the right to drill in (to prevent slipping).
2. When for the hole opener, add water while drilling for cooling to increase the life and prevent the product from breaking.
3. It can be used for various drilling machine; do not use the impact stop of electric drills to drill holes.
4. It is used for drilling hard materials such as stone, glass, concrete, etc. The service life of dry drilling is shorter than that of adding water.

Advantage:

Thicker sandblasting, durable
Thicker sandblasting, uniform coating, improve the wear resistance and life of the core bit.
Nickel plating process + large chip slot
The surface cut resistance is greatly reduced, and the large chip slots make chip removal smoother and improve efficiency.
Universal drill shanks are widely used
Compatible with all major brands of electric drilling machine, strong applicability.
Simple bagging, cost saving
Our drill bits are packed in plastic bags with cartons.

Diameter	Total length	Working length	Diamond width	Shank	Grit
22mm	85mm	60mm	5mm	Round	#60/70
25mm	85mm	60mm	5mm	Round	#60/70
28mm	85mm	60mm	5mm	Round	#60/70
30mm	85mm	60mm	5mm	Round	#60/70
32mm	85mm	60mm	5mm	Round	#60/70
35mm	85mm	60mm	5mm	Round	#60/70
38mm	85mm	60mm	5mm	Round	#60/70
40mm	85mm	60mm	5mm	Round	#60/70
43mm	85mm	60mm	5mm	Round	#60/70
45mm	85mm	60mm	5mm	Round	#60/70
50mm	85mm	60mm	5mm	Round	#60/70
55mm	85mm	60mm	5mm	Round	#60/70
60mm	85mm	60mm	5mm	Round	#60/70
65mm	85mm	60mm	5mm	Round	#60/70
70mm	85mm	60mm	5mm	Round	#60/70
75mm	85mm	60mm	5mm	Round	#60/70

Other specifications on request available.