Center Rock manufactures a full line of DTH hammers & bits from 3.5" (89mm) to 48" (1219mm), ROTO LOC overburden drilling systems, and LP Canister Drills from 18" (457mm) to 144" (3658mm). We also ... Read More

Numa has built a legacy of high quality, Made in the USA rock drilling hammers and bits for DTH, HDD, and reverse circulation holes 3½ to 50½ inches (89 - 1283 mm) in diameter. Our history of innov... Read More