The super duty Rotojec shank is the largest shank in the Rotojec grout swivel line, with a 5 in. OD shank on a 6-3/4 in. OD body for the heaviest soil stabilization drilling. High-strength, heat-treated alloy steel carries the string’s rotation and impact through the swivel during grout injection, with closed striking-bar-end threads spanning C64, H55 to H92 and T45 to T76, and open grout-bar-end threads from R38 to T103, Titan 40 to 52 and X38 to X76.

Size the shank to the string: the standard duty 3 in. OD and heavy duty 4 in. OD shanks cover lighter work, and every duty class runs in the same system with a Rotojec body and matching seal sets.

• 5 in. OD shank on a 6-3/4 in. OD body the super duty class of the Rotojec line
• Striking bar end (closed): C64, H55 to H92 and T45 to T76 threads
• Grout bar end (open): R38 to R51, T76 to T103, Titan 40 to Titan 52 and X38 to X76 threads
• High-strength, heat-treated alloy steel for extreme mechanical stress and wear
• Handles heavier loads and higher stress than the standard and heavy duty shanks
• Stocked by Crowder Supply in Denver in the popular thread combinations