Tapered Rods, Tapered Drill Rods, Taper Drill Steels ...
Acedrills’ taper drill rods comes with three grades, and lengths available from 600mm (2’) to 11,200mm (36’8”), (measured from the collar to the tapered end). 1. The ordinary connection taper degree is 7o, 11o and 12o, other degrees like 4.8o, 6o and 9o are also available upon request; 2.
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