pilebuck.com
Numa Releases Vortex Backhead - Pile Buck Magazine
Improves Drilling Performance & Hammer/Bit Life THOMPSON, CONNECTICUT USA – Numa, the leading designer and manufacturer of down hole hammers and bits, has released a Vortex Backhead design that improves drilling performance and hammer/bit life. It is available for Numa’s 12” hammer line when drilling conditions require a significant amount of water …