Rizom RZ9999 Wrench
- Wrench
- 1.4 inches
- 1.5 pounds
- 11.8 inches
An 11.8 inch wrench with a 1.38 inch jaw capacity, suited to mixed fastener sizes such as plumbing work rather than one repeated bolt size.
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How it ranks among the 561 wrenches we track
4.4★ across 377 Amazon ratings, Bayesian-smoothed toward the category average.
377 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
400+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 561 wrenches we track - how the scorecard works · full wrenches data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Rizom RZ9999 is an 11.8 inch wrench with a listed jaw capacity of 1.38 inches, a combination typical of an adjustable wrench sized for larger nuts and pipe fittings.
At 1.5 pounds it is lighter than a similarly long fixed-jaw wrench would be, which fits an adjustable-jaw design rather than solid forged steel throughout. No further material or finish details are given.
- 11.8 inch length
- 1.38 inch jaw capacity
- 1.5 pound weight
- Rizom RZ9999 model
Who it's for
Fits users needing one wrench that spans a range of fastener sizes up to about 1.38 inches, such as plumbing or general repair work. Not the best pick for one repeated bolt size.
Strengths and trade-offs
Drawn from this product's published specifications.
- Wide 1.38 inch jaw capacity
- Long 11.8 inch handle for leverage
- Lighter at 1.5 pounds
- No description or reviews provided
- Jaw type, open end versus adjustable, not explicitly confirmed
Performance notes
The 1.38 inch jaw capacity sets the largest fastener this wrench can grip, and the 11.8 inch handle length adds leverage for loosening stuck nuts compared with shorter wrenches.
Specifications
| Brand | RIZOM |
|---|---|
| Model | RZ9999 |
| Capacity | 1.4 inches |
| Item Weight | 1.5 pounds |
| Length | 11.8 inches |
How it compares
This product against the closest alternatives we track in wrenches.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Rizom RZ9999 WrenchThis product | 4.4 / 5 | 377 | 4.1 / 5 |
| Amazon AMZ1715 WrenchAmazon | 4.7 / 5 | 14,700 | 4.6 / 5 |
| Wheeler 553556 WrenchWheeler | 4.8 / 5 | 17,300 | 4.6 / 5 |
| LEXIVON LX-145 WrenchLEXIVON | 4.8 / 5 | 14,700 | 4.6 / 5 |
| MALCO MSHMLC WrenchMalco | 4.8 / 5 | 14,300 | 4.6 / 5 |
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Questions about the RIZOM RZ9999
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size fasteners does the Rizom RZ9999 fit?
Up to about 1.38 inches, based on the listed jaw capacity.
How long is it?
11.8 inches overall.
How much does it weigh?
1.5 pounds, per the spec sheet.