Performance Tool W343B Combination Wrench 1-3/8 Inch
- Jaw Capacity: 1.4 inches
- Measurement Standard: SAE (Inch)
- Head Style: Box End
- End Style: Combination
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B000N37DWWModel: W343BCategory: Wrenches
Overview
The Performance W343B is a wrench weighing just over 2 pounds, with a listed jaw capacity around 1.38 inches. That combination points to a mid-size wrench built for tasks heavier than a compact hand tool but short of a full pipe wrench.
At 2.06 pounds the W343B carries more heft than a typical open-end wrench, and its 1.38 inch capacity suggests it is meant for fasteners or fittings on the larger side of standard hand tool range. Performance does not list an overall handle length in the data, so pair the tool to jobs by capacity and weight rather than reach.
- Jaw capacity of 1.38 inches
- Weighs 2.06 pounds
Who it's for
Fits anyone needing a wrench with above-average jaw capacity for larger nuts, bolts or fittings around the house, shop or garage. Less suited to tight spaces where a slim, low-profile wrench is needed.
Pros and cons
- 1.38 inch jaw capacity for larger fasteners
- Solid 2.06 pound build
- No listed handle length
- Heavier than a compact hand wrench
Performance notes
The 2.06 pound weight gives the wrench some heft for applying torque without excessive flex, while the 1.38 inch capacity covers fasteners larger than what a standard combination wrench handles. No handle length is given, so reach in confined spaces is not something the data confirms one way or the other.
Specifications
| Brand | Performance |
|---|---|
| Model | W343B |
| Dimensions & fit | |
| Item Length | 1 inchlower than 92% of 371 wrenches |
| Wrench Length Style | Standard |
| Item Weight | 2.06 poundshigher than 62% of 356 wrenches |
| Capacity & performance | |
| Jaw Capacity | 1.4 incheshigher than 73% of 165 wrenches |
| Construction & materials | |
| Material Type | Alloy Steel |
| Color | Silver |
| Finish Types | Unpolished |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Included Components | One 1-3/8" Combination Wrench |
| Warranty & support | |
| Manufacturer Warranty Description | Lifetime Warranty |
| Other details | |
| Measurement Standard | SAE (Inch) |
| Head Style | Box End |
| End Style | Combination |
| Operation Mode | Mechanical |
| Is Racheting | No |
| Is Non Sparking | No |
| Point Count | 12 |
| Item Type Name | 1-3/8" Combination Wrench |
Closest rivals on specs
Astro Tools 78319 Nano Impact Socket Set 19 Piece- Item Length 1 vs 0.9 inches (+11%)
- Item Weight 2.06 vs 1.7 pounds (+21%)
Topline T-Handle Allen Wrench Set 14 Piece- Item Length 1 vs 0.1 inches (+900%)
- Item Weight 2.06 vs 1.72 pounds (+20%)
Amazon Basics SAE Flex Head Ratcheting Wrench Set 5 Piece- Item Length 1 vs 0.7 inches (+43%)
- Item Weight 2.06 vs 1.5 pounds (+37%)
Frequently asked questions
What is the jaw capacity of the Performance W343B?
The listing states 1.38 inches.
How much does the W343B weigh?
2.06 pounds.
Is the W343B a compact or full-size wrench?
Its weight and capacity point to a mid-size to larger wrench rather than a compact one.