Pump Wrenches

1-7/8" THIN PATTERN PUMP WRENCH-ARS28060 >

Opening Size: 1-3/4 inches (SAE / Imperial measurement system)Head Thickness: 0.312 inches (5/16"), optimized for slim or low-clearance fasteners Head Angle: 30-degree offset open side to increase the swing arc in narrow cavities Overall Length: 8.625 inches (8-5/8") featuring a flat handle profile Material & Finish: Drop-forged from high-grade alloy steel with a polished nickel-chrome plating for lifetime corrosion defense

he Armstrong Tools 28-050 (Part No. 069-28-050) is a premium, USA-made industrial thin pattern service and pump wrench. It features a 1-9/16" precision-broached opening and a specialized slender profile making it ideal for jam nuts and restricted

The Armstrong 28-048 is a 1-1/2" open-end service pump wrench manufactured in the United States. Known for its premium industrial build, this tool features a thin-pattern profile and an angled head to navigate highly restricted space

The Armstrong Tools 28046 is a 1–7/16 inch Satin Finish Open End Service Wrench. This heavy-duty, thin-pattern hand tool is specifically manufactured in the USA from premium high-alloy steel. It is engineered for industrial and automotive applications requiring access to fasteners in highly restricted spaces.

Opening Size: 1-3/8 inches, built with precision-broached openings for an exact fit. Head Offset: Features a 30-degree offset head angle to improve access in awkward positions. Thin Profile: Specifically optimized with a thin-pattern design to easily turn jam nuts, pump fittings, and fasteners in tightly restricted spaces. Overall Length: Rated at a compact 7.812 inches. Material & Finish: Constructed from drop-forged, through-hardened alloy steel and finished with a polished industrial chrome plating for long-term corrosion protection.

Open End SAE Regular Length Service/Pump Wrench, 1-5/16 in, 7.812 in OAL, 30 deg Offset

The Armstrong Tools 28-040 is a 1-1/4" Satin Chrome Thin Pattern Service / Pump Wrench. It features a specialty slim profile manufactured for managing thin jam nuts, pump fittings, and fastening tasks in tight clearances where a standard open-end wrench is too thick to fit.

1-1/8" THIN PATTERN PUMP WRENCH-ARS28036 >

1-1/16" THIN PATTERN PUMP WRENCH-ARS28034 >

A 1-inch thin pattern pump wrench manufactured by the industrial tool company Armstrong Tools. Alternatively, 28032 serves as a geographic postal code or a catalog system reference for a prominent maritime manufacturer.

A 7/8-inch thin pattern pump wrench originally manufactured by the Armstrong Tools company. It is a forged steel, open-end hand tool designed with a very slim profile to fit into tight clearances, commonly assigned the National Stock Number (NSN) 5120-00-203-4814.

8-PC CHROME THIN TAPPET WRENCH SET ARS27770>

5/8" X 1-1/16" DOUBLE END TAPPET WRENCH-ARS27694 >

1/2" X 9/16" DOUBLE END TAPPET WRENCH-ARS27667 >

31-02 0" TO 3/8" 2-JT PB CHUCK - JAC14698>

31-01 0" TO 3/8" 1-JT PB CHUCK - JAC14697>