DTH hammer

8 inch Numa DTH hammers

Hammer Size: 3.5” to33”
Product description: 8 inch Numa DTH hammers has a policy of continuous improvement of DTH technology and engineering, which is achieved through a proactive research and development program. Their performance driven Patri
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Numa 8" Hammer Series

Hammer	Patriot 80	Challenger 80	Challenger 80Q
Bit Shank	380	380	QL80
Recommended Bit Size (inches)	77⁄8 - 10"	77⁄8 - 10"	77⁄8 - 10"
Outside Diameter (inches)	7 1⁄8"	7 1⁄8"	7 1⁄8"
Hammer Weight (pounds)	362	444	442
Hammer Length Shoulder to Shoulder (inches)	45 1⁄8"	56"	54 3⁄4"
Backhead Connection	4 1⁄2 API Reg Pin	4 1⁄2 API Reg Pin	4 1⁄2 API Reg Pin
Blows/Min @ psi	1850 @ 350	1550 @ 350	1550 @ 350

Numa DTH Hammer has a policy of continuous improvement of DTH technology and engineering, which is achieved through a proactive research and development program. Their performance driven Patriot, Champion, and Challenger hammer models offer one of the largest ranges of hammers available in the industry, capable of drilling holes from 3 1/2" to 43" in diameter.