42mm Drill Bit - Manufacturers, Suppliers, Factory from China

42mm Drill Bit, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Application knowledge of pneumatic pick

The pneumatic pick is a kind of hand-held machine, the pneumatic pick is composed of the distribution mechanism, the impact mechanism and the pick rod. Therefore, the requirements of compact struct...
Introduction of air-leg rock drill

The air-leg rock drill relies on compressed air to drive the piston to reciprocate. During the stroke, the piston strikes the shank tail, and during the return stroke, the piston drives the drill t...
Screw air compressor high temperature overhaul method

The prerequisite is that the temperature of the screw air compressor machine room is within the permitted range, and the oil level is in the normal state (please refer to the random instruction). ...
The working principle of the rock drill

The rock drill works according to the principle of impact crushing. When working, the piston makes high-frequency reciprocating motion, constantly impacting the shank. Under the action of the impac...
How to use Shenli Rock Drill

How to use rock drill Rock drill is a simple, light and economical excavation machinery, widely used in road construction, infrastructure construction, mining and other industries. It is an importa...
The importance of a drill pipe bit for a rock drill

Drill pipe is an indispensable machine for mining machinery equipment. Drill pipe and drill bit are working devices of rock drill, which have great influence on the efficiency of rock drilling Dril...