Sunex 993505M Wrench
- Wrench
- 0.8 inches
- 0.5 ounces
- 9 inches
A 21mm wrench from an established tool brand with a solid rating base, a sensible single size pickup for anyone missing that spot in a metric set.
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How it ranks among the 561 wrenches we track
4.6★ across 105 Amazon ratings, Bayesian-smoothed toward the category average.
105 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand 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: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Sunex 993505M is a 9 inch wrench sized to a 21 millimeter capacity, positioning it for larger metric fasteners rather than small hardware. Sunex is an established tool brand, and this listing has drawn 105 ratings averaging 4.6 stars.
At 21 millimeters, this wrench is built for bigger bolts and nuts commonly found on automotive and heavy equipment work rather than fine mechanical assembly. The listing does not specify whether it is open end, box end, or combination, so buyers matching it to a specific job should confirm the head style from the product images.
- 21 millimeter capacity
- 9 inch overall length
- Sunex brand
- 4.6 star rating across 105 reviews
Who it's for
Fits mechanics and DIYers who need a dedicated 21 millimeter wrench for larger metric fasteners. Not useful to anyone working an SAE only toolbox or needing a smaller capacity for compact spaces.
Strengths and trade-offs
Drawn from this product's published specifications.
- Sized for 21 millimeter fasteners
- 9 inch length for solid leverage
- Rated 4.6 stars across 105 reviews
- Head style is not stated
- No recent purchase volume reported
Performance notes
At 9 inches long, the 993505M gives enough leverage for typical automotive size 21mm fasteners without the extra length of a breaker bar. Sunex markets the tool at this single capacity, so it fills one specific gap in a wrench set rather than covering a range.
Specifications
| Brand | SUNEX |
|---|---|
| Model | 993505M |
| Capacity | 0.8 inches |
| Item Weight | 0.5 ounces |
| Length | 9 inches |
Other SUNEX wrenches
How it compares
This product against the closest alternatives we track in wrenches.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Sunex 993505M WrenchThis product | 4.6 / 5 | 105 | 3.7 / 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 |
Similar wrenches from other brands
Questions about the SUNEX 993505M
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size fastener does the Sunex 993505M fit?
It is sized to a 21 millimeter capacity.
How long is the 993505M wrench?
It measures 9 inches.
How is the Sunex 993505M rated?
4.6 stars across 105 reviews.