The Ampco Safety Tools WO-7/8X15/16 is a non-sparking, non-magnetic double open end wrench (7/8 in x 15/16 in) — nickel aluminum bronze, 15° offset — engineered for use in hazardous work environments.

Manufactured in the USA and Factory Mutual approved, it is beryllium-free and built for professionals who work around flammable or combustible vapors, liquids, dust, or residue where a standard steel tool could trigger a dangerous spark. Its non-magnetic properties make it safe for use near highly sensitive magnetic equipment, including MRI and clean room environments, and it conforms to ASTM F2503 and ASTM A342 standards.

Unlike conventional steel tools, the Ampco WO-7/8X15/16 delivers outstanding durability even in the most corrosive conditions, including exposure to salt water, chemicals, and acids.

The WO-7/8X15/16 open end wrench is the go-to choice for oil and gas, petrochemical, mining, military, and industrial maintenance applications where worker safety and tool reliability are non-negotiable.

Specifications

Opening sizes: 7/8 in x 15/16 in

Head angle: 15° offset

Overall length: 9 in.

FM Approved: Yes

Availability: Typically in stock. If your item is unavailable at the time of order, we will contact you promptly to confirm lead times and discuss alternatives.

HS Code: 8204.11

COO: USA

FAQ

What alloy is the Ampco WO-7/8X15/16 made from?

The wrench is machined from Ampco's nickel aluminum bronze alloy — non-sparking, non-magnetic, Factory Mutual approved, and beryllium-free.

What is the 15° head angle offset for?

Both open ends are offset at 15° to provide clearance from the work surface, allowing a ratcheting motion by flipping the wrench on each stroke.

Is the WO-7/8X15/16 safe near MRI equipment?

Yes. The non-magnetic alloy is ASTM F2503 compliant and tested safe in MRI environments up to 3-Tesla.

Can I use this wrench in corrosive or marine environments?

Yes. Aluminum bronze resists seawater, acids, and industrial chemicals far better than steel, making the WO-7/8X15/16 ideal for offshore and chemical processing use.

Is the Ampco WO-7/8X15/16 covered by a warranty?

Yes. All Ampco Safety Tools carry a lifetime warranty.