The Stemlock can be customized for your specific drill rig. The following information would be required to ensure accurate fit.

• Drill manufacturer

• Drill model

• Drill rod diameter

• Spanner-flat size

The Mammoth stemlock is designed and manufactured to secure the drill string during the breakout and makeup process. They serve as a direct replacement for any Atlas Copco / Epiroc drill rig. They can also be installed on other OEM drill rigs to convert from the original design.

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