To stop the motor running and stop supplying air to the impactor, send water, insert the fork into the drill rod groove of the holder, make the motor reverse the slide back, disconnect the joint from the drill rod, and then connect the second drill rod, press this to cycle and work continuously. characteristic of down the hole drilling rig. 1.
It is a kind of self drilling anchor bolts. it is a new and high technological supporting product which combines drilling, grouting and anchoring together. the bolt length is flexible, it can be lengthened according to your demands.
Water is injected into the drill pipe, so as to wash out the rock cuttings produced by the bit and also to reduce the heat produced due to friction which causes less wear and tear of the bits. an actual diamond bit is a complex affair, usually designed for a …
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