The Secoroc COP 66 down-the-hole hammer from Atlas Copco penetrates 15 percent faster than its predecessor, adjusts for feed force and rotation, has no exhaust tube and includes a solid bit with no center flushing hole. Designed for use on the Atlas Copco SmartROC and FlexiROC drill rigs, the E-kit enables the COP 66 to be rebuilt twice over its lifetime in normal abrasive conditions. 800/732-6762;

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