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Tapered Drill Rods


Tapered drill rods are also known as tapered drill steels, collared rods and pneumatic rods, which are driven by light pneumatic or hydraulic rock drills for drilling small holes with taper bits. The tapered drill rods normally has diameter of H22 and H25, taper degree of 4, 6, 7, 11, and 12, and length of 400mm-5000mm. The tapered drill rods are widely used in mining, tunneling, bolting, quarrying, construction, etc.