Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 3/4 in Head Size - SAE, Straight Handle, Nonsparking, Striking Open End Wrenches
AMPCOSAE, Straight Handle, Nonsparking, Striking Open End Wrenches

AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 3/4 in Head Size

The AMPCO WSO-4-3/4 is a nonsparking striking open end wrench, SAE straight handle type, in aluminum/bronze. It features a 4 3/4 in head size and 22 in overall length, designed for use in hazardous environments where…

SKU 3G-OTH-291229

Also listed as: WSO434 · WSO 4 3 4 · WSO-4-3-4

Brand
AMPCO
Item
Striking Wrench: Aluminum/Bronze, Natural, 4 3/4 in Head Size
Category
SAE, Straight Handle, Nonsparking, Striking Open End Wrenches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

AMPCO
Manufacturer Part Number
WSO-4-3/4
Type
Natural
Overall Lg
22 in
Head Size
4 3/4 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

AMPCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The AMPCO WSO-4-3/4 is a nonsparking striking open end wrench, SAE straight handle type, in aluminum/bronze. It features a 4 3/4 in head size and 22 in overall length, designed for use in hazardous environments where sparking tools are prohibited.

Frequently Asked Questions

What is an AMPCO striking wrench used for?

An AMPCO striking wrench is a nonsparking, aluminum-bronze tool designed for high-torque applications in hazardous environments such as oil refineries, chemical plants, and gas facilities where sparks could ignite flammable materials.

What are the specifications of the AMPCO WSO-4-3/4 striking wrench?

The AMPCO WSO-4-3/4 is a SAE straight-handle striking open-end wrench with a 4 3/4 in head size and 22 in overall length. It is made from natural aluminum-bronze alloy for nonsparking performance in explosive atmospheres.

Where to buy AMPCO striking wrenches worldwide?

3G Electric supplies AMPCO striking wrenches worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine AMPCO tools and deliver them to your facility, regardless of location.

How to maintain an AMPCO nonsparking wrench?

Clean the AMPCO aluminum-bronze wrench after each use with a mild solvent to remove contaminants. Inspect regularly for cracks or deformation, and never modify the tool by grinding or machining, as this can compromise its nonsparking properties.

Used in

Common applications for AMPCO
Oil and gas refinery maintenance — AMPCO combination wrench model 1512 for tightening flanges in classified areas
Chemical processing plant — AMPCO box-end wrench model 4422 for valve adjustment in volatile atmospheres
Grain handling facility — AMPCO open-end wrench model WO-22X23 for equipment repair in dust-hazard zones
Pharmaceutical manufacturing — AMPCO slotted screwdriver model S-39 for accessing control panels in cleanrooms
Mining operations — AMPCO impact socket model I-1D1-7/16 (4-PT) for heavy equipment maintenance underground
Aerospace fuel handling — AMPCO nut driver model ND-15MM for assembly of fuel system components

AMPCO Products

3G Electric supplies AMPCO sae, straight handle, nonsparking, striking open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 1/4 in Head Size, 22 in Overall Lg (MPN WSO-4-1/4)
AMPCO
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 1/4 in Head Size, 22 in Overall Lg (MPN WSO-4-1/4)
This nonsparking striking open end wrench is made from aluminum-bronze alloy, featuring a natural finish. It has a 4-1/2 inch head size and a 22 inch overall length with a straight handle. Designed for SAE fasteners, it is suitable for high-torque applications in environments where spark prevention is required
AMPCO
This nonsparking striking open end wrench is made from aluminum-bronze alloy, featuring a natural finish. It has a 4-1/2 inch head size and a 22 inch overall length with a straight handle. Designed for SAE fasteners, it is suitable for high-torque applications in environments where spark prevention is required
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 3 1/4 in Head Size, 16 in Overall Lg (MPN WSO-3-1/4)
AMPCO
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 3 1/4 in Head Size, 16 in Overall Lg (MPN WSO-3-1/4)
SAE straight-handle striking open end wrench made from nonsparking aluminum-bronze alloy. Natural finish. Head size 4-5/8 in, overall length 22 in. Used in hazardous environments where spark resistance is required for heavy-duty bolting applications
AMPCO
SAE straight-handle striking open end wrench made from nonsparking aluminum-bronze alloy. Natural finish. Head size 4-5/8 in, overall length 22 in. Used in hazardous environments where spark resistance is required for heavy-duty bolting applications
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 1/8 in Head Size, 20 in Overall Lg (MPN WSO-4-1/8)
AMPCO
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 1/8 in Head Size, 20 in Overall Lg (MPN WSO-4-1/8)
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 7/8 in Head Size, 22 in Overall Lg (MPN WSO-4-7/8)
AMPCO
AMPCO Striking Wrench: Aluminum/Bronze, Natural, 4 7/8 in Head Size, 22 in Overall Lg (MPN WSO-4-7/8)

More from AMPCO

View all AMPCO parts
This nonsparking striking open end wrench is made from aluminum-bronze alloy with a natural finish. It features a straight handle, SAE sizing, a 3-3/4 in head size, and a 20 in overall length. Designed for use in environments where sparking must be avoided, it is suitable for heavy-duty bolting applications requiring striking with a hammer
AMPCO
This nonsparking striking open end wrench is made from aluminum-bronze alloy with a natural finish. It features a straight handle, SAE sizing, a 3-3/4 in head size, and a 20 in overall length. Designed for use in environments where sparking must be avoided, it is suitable for heavy-duty bolting applications requiring striking with a hammer
This nonsparking striking open end wrench is made of aluminum-bronze alloy, featuring a natural finish. It has a 2 1/16 in head size and 11 in overall length. The straight handle design allows it to be struck with a hammer for loosening or tightening large fasteners in environments where spark prevention is required
AMPCO
This nonsparking striking open end wrench is made of aluminum-bronze alloy, featuring a natural finish. It has a 2 1/16 in head size and 11 in overall length. The straight handle design allows it to be struck with a hammer for loosening or tightening large fasteners in environments where spark prevention is required
SAE straight-handle striking open end wrench made of aluminum-bronze alloy with a natural finish. Head size 11/16 in, overall length 7 in. Nonsparking construction for use in hazardous environments where ignition risk exists
AMPCO
SAE straight-handle striking open end wrench made of aluminum-bronze alloy with a natural finish. Head size 11/16 in, overall length 7 in. Nonsparking construction for use in hazardous environments where ignition risk exists
Nonsparking striking open end wrench made from aluminum-bronze alloy with a natural finish. Features a 4-3/8 in head size and 22 in overall length with a straight handle. Suitable for use in hazardous environments where sparking tools are prohibited, such as oil refineries, chemical plants, and mining operations
AMPCO
Nonsparking striking open end wrench made from aluminum-bronze alloy with a natural finish. Features a 4-3/8 in head size and 22 in overall length with a straight handle. Suitable for use in hazardous environments where sparking tools are prohibited, such as oil refineries, chemical plants, and mining operations
This AMPCO striking open end wrench is made from aluminum-bronze alloy with a natural finish. It has a 15/16 in head size and an overall length of 8 in. The nonsparking property makes it suitable for use in hazardous environments where ignition from sparks must be avoided
AMPCO
This AMPCO striking open end wrench is made from aluminum-bronze alloy with a natural finish. It has a 15/16 in head size and an overall length of 8 in. The nonsparking property makes it suitable for use in hazardous environments where ignition from sparks must be avoided
This AMPCO striking open end wrench is made from nonsparking aluminum-bronze alloy, suitable for use in hazardous environments where sparking tools are prohibited. It features a 3-7/8 in head size and 20 in overall length, with a natural finish. The straight handle design allows for striking with a hammer to apply high torque on large fasteners
AMPCO
This AMPCO striking open end wrench is made from nonsparking aluminum-bronze alloy, suitable for use in hazardous environments where sparking tools are prohibited. It features a 3-7/8 in head size and 20 in overall length, with a natural finish. The straight handle design allows for striking with a hammer to apply high torque on large fasteners
SAE straight handle striking open end wrench made of nonsparking aluminum-bronze alloy. Natural finish. Head size 1-7/8 in, overall length 10 in. Used in hazardous environments where sparking tools are prohibited, such as oil refineries, chemical plants, and gas facilities
AMPCO
SAE straight handle striking open end wrench made of nonsparking aluminum-bronze alloy. Natural finish. Head size 1-7/8 in, overall length 10 in. Used in hazardous environments where sparking tools are prohibited, such as oil refineries, chemical plants, and gas facilities
Nonsparking striking open end wrench made from aluminum-bronze alloy with natural finish. SAE straight handle design with 2-1/8 in head size and 11 in overall length. Used in hazardous environments where sparking tools are prohibited, for heavy-duty bolting applications requiring impact from a hammer
AMPCO
Nonsparking striking open end wrench made from aluminum-bronze alloy with natural finish. SAE straight handle design with 2-1/8 in head size and 11 in overall length. Used in hazardous environments where sparking tools are prohibited, for heavy-duty bolting applications requiring impact from a hammer