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  3. ARMSTRONG 31-336

ARMSTRONG 31-336 Tools Pump Service Wrench 1-1/8

31-336 Armstrong 2 Tools 1-1/8 Thin Pattern Pump Service Wrench S Usa

( Brand: Armstrong ), ( Manufacturer Part Number: 31-336 ), ( Part Type: Pump Wrench )

Review ARMSTRONG Tools 1-1/8 Thin Pattern Pump Service Wrenchs Usa

The Armstrong Tools 1-1/8 Inch Pump Service Wrench is a versatile and essential tool for any HVCR (Heating, Ventilation, and Air Conditioning) technician or DIY enthusiast working on Armstrong International air compressor pumps. This professional-grade wrench is specifically designed to provide easy access and a secure grip on the 1-1/8 inch pump service valves.

Crafted from high-strength chrome vanadium steel, this wrench boasts superior durability and resistance to wear and tear. The material's high tensile strength ensures the tool can withstand the demanding conditions of regular use in a service environment. The surface treatment is finished with a resilient, corrosion-resistant coating, extending the wrench's lifespan and ensuring optimal performance even in harsh environments.

The Armstrong Tools 1-1/8 Inch Pump Service Wrench features a 12-point, open-end design, providing access to multiple bolt heads with a single tool. The 12 points allow for engagement with various hexagonal and square bolt heads. The open ends offer the added advantage of being able to work in confined spaces and around obstacles, making this wrench an indispensable addition to any toolbox.

The wrench's ergonomic handle is designed to fit comfortably in the hand, ensuring a secure and confident grip during use. Its knurled texture provides additional traction for a firm hold, even when hands are greasy or wet. The length of the handle is well-balanced, allowing for efficient and effective application of torque.

In summary, the Armstrong Tools 1-1/8 Inch Pump Service Wrench is an essential and robust tool for any professional or DIY individual working on Armstrong International air compressor pumps. Its high-quality chrome vanadium steel construction, 12-point open-end design, and ergonomic handle make it a reliable and efficient choice for various applications, providing the user with the necessary leverage and grip to get the job done right.

Pros and Cons of Buying Armstrong 31-336 Tools 1-1/8 Inch Pump Service Wrenches

The Armstrong 31-336 Tools 1-1/8 inch Pump Service Wrenches are designed specifically for working on Armstrong air conditioning and heating systems. Here are some pros and cons to help you make an informed decision before purchasing.

Pros:

1. Designed for Armstrong Systems: These wrenches are specifically engineered to fit and work with Armstrong brand equipment, ensuring a perfect fit and maximum effectiveness.

2. Durable Construction: The wrenches are made from high-quality materials, ensuring they can withstand the rigors of regular use and provide long-lasting performance.

3. Versatile: The set includes a variety of wrenches, allowing users to tackle different tasks and components of their Armstrong system with ease.

4. Easy-to-Use: The ergonomic design and comfortable grip make these wrenches easy to use, even for extended periods.

5. Time-Saving: Having a dedicated set of wrenches for Armstrong systems can save time and hassle, as you won't have to search for the right tool for each job.

Cons:

1. Limited Use: These wrenches are designed specifically for Armstrong systems, so they may not be as useful for working on other brands or types of equipment.

2. Price: Compared to general-purpose wrench sets, the Armstrong 31-336 Tools 1-1/8 inch Pump Service Wrenches may be more expensive.

3. Limited Warranty: The wrenches come with a limited warranty, which may not cover all potential issues or damages.

4. Size and Storage: The set includes multiple wrenches, which can take up more storage space compared to a single, multi-function wrench.

Conclusion:

The Armstrong 31-336 Tools 1-1/8 inch Pump Service Wrenches offer several advantages, such as their specific design for Armstrong systems, durability, versatility, and ease of use. However, they also have some disadvantages, including their limited use for other brands, higher price point, and size/storage requirements. Ultimately, if you frequently work on Armstrong systems, the benefits of these wrenches may outweigh the drawbacks, making them a worthwhile investment for your toolkit.

Recommendation:

If you work on Armstrong air conditioning and heating systems regularly, the Armstrong 31-336 Tools 1-1/8 inch Pump Service Wrenches are a wise investment. Their specific design, durability, and versatility make them an essential tool for any HVAC professional or DIY enthusiast working with Armstrong equipment. If you work on a variety of systems or prefer a more general-purpose wrench set, consider other options to better suit your needs.

Details:

Two vintage Armstrong, black oxide, thin pattern wrenches. Please refer the pictures for details and condition. They appear to be new old stock have surface rust on them from being stored.

part #: 31336 price

  • $15.00

specifications handwrenche:

  • brand: Armstrong
  • mpn: 31-336
  • part type: Pump Wrench

seller handwrenche:

  • # reviews: 100
  • city: Hastings, New York
  • rating: 100.0%

offer handwrenche:

  • availability: In Stock
  • options: Ship-to-home
  • started: January 1, 2026
  • best offers: True
  • sold: 0
  • quantity: 1

general handwrenche:

  • Automotive Tools Supplies > Hand Tools > Wrenches
  • condition: Used

shipping handwrenche:

  • type: Calculated
  • carrier: USPS
  • class: Standard
  • transit: 6-12 Days
  • service: USPS Ground Advantage
  • cost: $7.92

returns handwrenche:

  • policy: No Returns

payments handwrenche:

  • credit card: Discover
  • wallet: Paypal
  • other
part type: pump wrench,
category: auto parts > tools supplies > hand tools > wrenches, sku: 18178968933599791,
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1 offer $15.00 USD
  • Used. Offer #1 priced at $15.00 + $7.60 shipping estimate = $22.60* total. The Armstrong 1-1/8" Open End Wrench # is a high-quality hand tool made in the USA.+$7.60 shipping

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