Hammer unions have been in wide use for decades, but nobody came up with a better way than just beating on them with sledgehammers – until now. The powerful, versatile wrench is an easier, safer and more economical way for your field crews to fasten and disassemble hammer unions wherever they’re used – without sacrificing speed or wasting precious rig-up time.

The wrench comes in most of the sizes commonly used for temporary high-pressure service in western Canada’s oil and natural gas and mining sectors – from 2” to 6” union diameter. If you don’t see a size that suits your needs, please talk to us about designing and producing other head sizes for your company.

Available Sizes

The patented wrench's various wrench diameters cover most of the hammer union sizes commonly used in western Canada. Our four handle lengths fit all wrench head sizes, allowing selection of the handle that best fits the available working space and the user’s strength and preference. You can buy one head and handle as a unit, or a complete set of heads with four handles.

Metallic silver is the standard colour. On large-run orders, a modest surcharge gets you custom-painted. You might like to select your company’s official colour, for easy identification on the job-site.

Part Number   Description   Availability
710-0019   Head, 2" Fig. 100/200/206/400   Available
710-0020   Head, 2" Fig. 602/607/1002   Available
710-0021   Head, 2" Fig. 1502   Available
710-0022   Head, 3" Fig. 100/200/206/300   Available
710-0023   Head, 3" Fig. 602/1002   Available
710-0024   Head, 3" Fig. 1502   Available
710-0048   Head, 3" Fig. 400   Available
710-0025   Head, 4" Fig. 602/1002   Available
710-0027   Head, 4" Fig. 1502   Available
710-0049   Head, 4" Fig. 100/200/206/300/400   Available
710-0050   Head, 5" Fig. 1002/1502   Available
710-0028   Head, 6" Fig. 100/200/206   Available
Part Number   Description   Availability
710-0059   Handle, 24" long   Available
710-0030   Handle, 36" long   Available
710-0031   Handle, 42" long   Available
710-0032   Handle, 46" long   Available


The wrench is suited to any job where hammer unions are used, i.e., temporary high-pressure service up to 15,000 psi. That is most commonly required in the oil and natural gas industry and includes flare lines, flow lines and injection lines, high-pressure lines used during hydraulic fracturing and other pressure-pumping services such as cementing, and under-balanced drilling. There can also be need for temporary service, such as steam, during facility turnarounds or expansions. The mining industry also has various requirements for temporary high-pressure service.

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