DTH Quad / Cluster Drill Reverse Circulation Hole Boring Hammer

The Quad Drill contains a number of closed loop top exhaust hammers with unique four sided elliptical bits with ramps angle gauge that can index four times to allow all gauge surfaces to be used.  When the bit drops, the air is shut off to the individual hammer and diverted to the remaining hammers with closed bits.  This allows the Quad Drill to operate on uneven and fractured surfaces.


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DTH Quad Cluster Drill Reverse Circulation Hammer, foundation drilling and hole boringDTH Quad Cluster Drill Reverse Circulation Hammer, foundation drilling and hole boring

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

Your #1 source for foundation and well drilling products, drilling supplies, and tools. Reverse Circulation / RC drilling equipment and drill pipe specialist. 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 speicalize in Secant retaining wall construction and bridge construction. Please contact us at (541) 935-5054 for consultation, drilling supplies and or sales questions.

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

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