Holey-Moley Digger Partner


We are proud to present Keene Engineering as a Holey-Moley Digger Partner. Keene Engineering manufactures of our Portable Engine Driven Shop Vacuum System.  This system is used to power the our Digger in remote locations.

Holey-Moley Digger Partner

















Engine Driven Vacuum System

Our Portable Engine Driven Shop Vacuum System was developed by Keene Engineering our Holey-Moley Digger Partner.  It was designed for dry gold dredging. The system fits on top of a 5 gallon bucket with an easy on-off screw lid.  Because the vacuum unit is powered by a high quality Makita 4-Cycle Gas Engine it is very reliable.  Since the engine can run all day on one gallon of gas, one has less gas to transport. In addition this system works both as a blower or as a vacuum. Finally, weighing in at 19 lbs this portable system is a perfect choice for the Holey-Moley Digger for digging holes where electricity is not available. Especially relevant is the light weight vacuum system is easy to carry on a back pack to remote areas.

High Flow Rate

The Portable Engine Driven Shop Vacuum System operates at an air flow rates of 180 CFM. This air flow rate performs well for all the Holey-Moley Diggers.   This system in combination with the 2.5-inch suction hose makes it an excellent choice for operating Holey-Moley Diggers.

Outdoor Vacuum System

The Portable Engine Driven Shop Vacuum System will clean up areas around holes dug with the Holey-Moley Digger.  In addition, it is ideal for vacuuming up loose dirt when replacing plants in landscaping and for doing paver and brick work.  Another common application for this unit is vacuuming up concrete surfaces that require cleaning before adding additional concrete.

Portable Engine Driven Shop Vacuum System
Portable Engine Driven Shop Vacuum System (HVS)


The Engine Drive Shop Vacuum is ideally suited for powering the Holey-Moley Digger. Especially relevant is the unit produces super cyclonic airflow flow rates. These are especially relevant for powering the Holey-Moley digger head.  In addition, this high flow rate increases the dirt particle extraction efficiency of the unit.  Air flow velocities in excess of several hundred miles per hour are common.  Due to the high reliability and excellent air flow rate we recommend the Portable Engine Driven Shop Vacuum for the Holey-Moley Digger.

Keene Engineering Carries a full line of Holey-Moley Digger Products

Keene Engineering is a Holey-Moley Digger Partner.  They carry a full line of Holey-Moley Digger products. These products include our Holey-Moley Digger and  Reamer.  Keene Engineering also carries the 8-inch Cache Tube Kit. In addition Keene carries the 6-Inch Cache Tube Kit.  Both kits contain an internal pipe plug for a water tight seal.  Finally, Keene carries the unique 6-Inch Cache Tube Kit. This kit has a threaded end cap and custom O-Ring seal to keep the contents dry.

Dry Dredging Innovations

Keene Engineering is innovative in the gold dredge industry.  They have pioneered many new products in the dry dredging arena.   The Holey-Moley Digger is especially relevant as one of these products they recognize.  The Holey-Moley Digger easily bores test holes for gold exploration.  Holes as deep as 15 to 20 feet deep are common for penetrating soil layers.  Consequently reaching and sampling underlying gold bearing gravel is now easy,

Contact information for Keene Engineering our Holey-Moley Digger Products Partner:

Keene Engineering
20201 Bahama Street
Chatsworth, CA 91311

Phone: 1-800-392-4653
Fax:    818-993-0447