Sunex 993018M Stubby Combination Wrench 18mm
- Jaw Capacity: 0.7 inches
- Measurement Standard: Metric
- Head Style: Box End
- Item Length: 5.5 inches
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An 18mm stubby wrench measuring 5.5 inches, a sensible pick when reach into tight clearance space matters more than raw leverage.
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ASIN: B007QV6MC6Model: 993018MCategory: Wrenches
Overview
The Sunex 993018M is a compact wrench measuring 5.5 inches long and sized to an 18 millimeter capacity, weighing 3.2 ounces. The short length marks it as a stubby-style wrench meant for tight clearance work rather than a full-length combination wrench.
Sunex builds mechanic's hand tools, and the numbers here read as a stubby wrench: 5.5 inches is well under standard combination wrench length, and 18 millimeters sets the opening size. At 3.2 ounces it is light enough to keep several sizes on hand without adding real weight to a tool bag.
- Brand: Sunex
- Model: 993018M
- Length: 5.5 inches
- Capacity: 18 millimeters
Who it's for
Suits mechanics or DIY users who need to reach a fastener in a space too tight for a full-size wrench and specifically need the 18mm size. Not the tool to buy if you need one wrench to cover a range of fastener sizes, since this is a single fixed capacity.
Pros and cons
- Short 5.5-inch body fits tight spaces
- Light at 3.2 ounces
- Fixed 18mm capacity for that specific fastener size
- Less leverage than a full-length wrench
- Single fixed size, not adjustable
Performance notes
The 5.5-inch length trades leverage for reach, letting the wrench turn a fastener in a space a standard-length tool cannot enter. At 3.2 ounces and 18 millimeters, it is sized as a single-capacity tool rather than an adjustable one.
Specifications
| Brand | SUNEX |
|---|---|
| Model | 993018M |
| Dimensions & fit | |
| Item Length | 5.5 incheslower than 68% of 371 wrenches |
| Item Weight | 0.2 poundslower than 87% of 356 wrenches |
| Capacity & performance | |
| Jaw Capacity | 0.7 incheslower than 50% of 165 wrenches |
| Construction & materials | |
| Material Type | Alloy Steel |
| Color | Silver |
| Finish Types | Polished |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Included Components | …. |
| Warranty & support | |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Other details | |
| Measurement Standard | Metric |
| Head Style | Box End |
| Operation Mode | Mechanical |
| Item Type Name | Sunex 993018M 18 Mm Fully Polished Stubby Combination Wrench |
Closest rivals on specs
Capri Tools 30037 XZN Triple Square Bit Socket 14mm- Item Weight 0.2 vs 0.1 pounds (+100%)
SPEEDWOX Mini Combination Wrench Set 10 Piece- Item Weight 0.2 vs 0.26 pounds (-23%)
WISEUP WP032 Metric T-Handle Allen Wrench Set- Item Weight 0.2 vs 0.09 pounds (+122%)
Frequently asked questions
What size fasteners does the Sunex 993018M fit?
It is sized to an 18 millimeter capacity.
How long is this wrench?
5.5 inches, shorter than a standard combination wrench.
How much does it weigh?
3.2 ounces.