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Drill rod-the drill rod used in the tunnel project is to connect the drill bit and the drill tool. The drill rod commonly used in the mine tunnel project is hexagonal hollow steel and hollow round steel. The inner round diameter of hexagonal hollow steel is 22mm and 25mm, and the outer diameter of hollow round steel is 32mm and 38mm. The drill rod has finished drill rod and forged drill rod. The finished drill rod is forged according to a certain length and then the drill head drill hole is installed directly. The forged drill rod is to shear the hollow hexagonal steel according to needs. Then the drill rod tail and drill head are forged with the forging drill rod machine, and then the drill head drill hole is installed.

Alloy steel drill bit-the drill bit commonly used in mine shaft and tunnel engineering is a straight-line alloy steel drill bit, and cross-shaped alloy drill bit is also used when drilling hollow holes.  Y-type alloy drill bit and X-type alloy drill bit, but the cost of the in-line drill bit is relatively low. The in-line alloy drill bit is inlaid. The matrix of the steel drill bit is inlaid with in-line hard alloy, which can be reused after grinding. The drill bit specifications are generally 36 mm-44 mm.