Sunex 960A 1-7/8-Inch Jumbo Combination Wrench - Durable CR-MO Tool

In this review of the Sunex 960A 1-7/8-in jumbo combination wrench the bottom line is simple: this is a heavy-duty hand tool for technicians and DIYers who need a stout, reliable wrench for larger fasteners. The reviewer found the wrench's standout attribute to be its construction from chrome molybdenum (CR-MO) alloy steel paired with a lifetime warranty, which together promise long service life and confidence on tough jobs. For anyone who values durability and a well-sized tool for trailer hardware, suspension work, or shop use, this wrench earns consideration.

Key Features

• CR-MO alloy steel: The chrome molybdenum construction delivers superior toughness so the wrench resists bending and holds up under heavy torque.
• Lifetime warranty: Backing from the maker provides long-term peace of mind and protects the investment in a single reliable tool.
• Jumbo 1-7/8-in size: The larger jaw and box end cover common large fasteners, making it useful for trailer hitch balls and bigger nuts.
• Combination design: The open and box ends let users switch between quick adjustments and more secure turns without swapping tools.
• Value-focused build: The wrench balances top-quality steel with a price that aims to deliver strong durability without premium tool-markup.

Who It's For

The Sunex 960A is suited to mechanics, fabricators, and homeowners who frequently work on trailers, heavy equipment, or tasks that require larger wrench sizes. Its CR-MO alloy steel and lifetime warranty make it a good pick for those who want a tool that will survive shop abuse and occasional high-torque use.

Users who primarily need smaller metric or SAE sizes, or who prefer lightweight, chrome-vanadium options for frequent carry, should look elsewhere. Also, if a full matched set is required rather than a single jumbo wrench, buyers may prefer purchasing a multi-piece combination wrench set.

Pros & Cons

Pros

• Solid, durable CR-MO construction that resists deformation under load.
• Lifetime warranty provides confidence and long-term coverage.
• The 1-7/8-in size handles larger fasteners like trailer hitch hardware well.

Cons

• Size is jumbo by design and may be larger than expected for buyers used to 1-3/8-in tools.

Specifications

Product name	Sunex 960A 1-7/8-in Jumbo Combination Wrench
Material	Chrome molybdenum (CR-MO) alloy steel
Size	1-7/8 in
Type	Combination wrench (open and box end)
Warranty	Lifetime warranty
Intended use	Hand tool for larger fasteners, trailer and shop work

Our Verdict

The Sunex 960A 1-7/8-in jumbo combination wrench is a straightforward, well-built tool best for users who need a larger, high-strength wrench backed by a lifetime warranty. Its CR-MO construction and combination ends make it a dependable single-tool solution for shop or trailer tasks, offering solid value for anyone prioritizing durability over compactness.

Frequently Asked Questions

Is this wrench covered if it breaks under normal use?
The wrench comes with a lifetime warranty that covers defects in workmanship and materials according to the manufacturer's terms.

Will the 1-7/8-in size fit trailer hitch balls?
Customers report the size is suitable for many trailer hitch ball nuts; it is larger than some smaller sizes and works for heavier trailer hardware.

What is the main advantage of CR-MO steel?
Chrome molybdenum alloy provides greater toughness and resistance to bending under torque compared with softer tool steels, making it well suited to heavy-duty wrenches.