Integral Drill Steels:
(1) Steel grade: 95CrMo equivalent to SANDBAR 20 or C253, 55SiMnMo
(2) Shank size: hex19mm hex.22mm, including Plug Hole Rod
(3) Head Diameter: 24mm-44mm
(4) Length: 0.4m-10m
(5) Package: in wooden case or in bundles
(6) Productivity: 2000MT/Month
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