Drill Rig Modifications:
Grout Inlets

Grout inlets allow pressurized grout to be injected into the center of the drill string allowing grout or cement to flow through Holte's patented hammer and bit.  Air and Hydraulic Valves can be installed above grout inlets to prevent grout from traveling through the system incorrectly.

image: 
Grout and cement flow hammer and bit inlets for pressurized grout injection of the drill stringGrout and cement flow hammer and bit inlets for pressurized grout injection of the drill string

To download our company's complete product catalog, please click here.

© Copyright - Holte Manufacturing - Veneta, Oregon. Drilling equipment design, consultation and field applications.

Your #1 source for foundation and well drilling products and tools, Reverse Circulation / RC drilling equipment and drill pipe, Hole Hammers, Casing Drivers, Extractor Hammers, Perforators, Casing Cutters, Top Head Drivers, Air Inlet Swivels, mast modification, Grout Inlets and refurbished drill rigs. We also specialize in Secant retaining wall construction and bridge construction. Please contact us at (541) 935-5054 for consultation or sales questions.

All products are Made in the USA!

We are also proud to make a wide variety of
Glue Mixing products, machines and tanks used all over the world.

Design & Hosting by :DEENT, LLC