GEARWRENCH 81681 Flare Nut Wrench 3/8 x 7/16
- Head Style: Flare Nut
- End Style: Hang Hole
- Item Length: 6 inches
- Wrench Length Style: Standard
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
This GEARWRENCH wrench earns its spot once you have confirmed the exact size and drive against your fastener, since it is built for tight spaces rather than general use.
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ASIN: B002YKJAPKModel: 81681Category: Wrenches
Overview
GEARWRENCH 81681 is a compact wrench measuring just under 6 inches and weighing about 1.6 ounces, sized for close-quarters work rather than high-torque jobs. From GEARWRENCH's line of individual hand tools, it functions as a stand-alone wrench for spot repairs or filling a socket set gap.
At under 6 inches, this reads as a small format wrench meant for tight engine bays, cabinetry or electronics work where a full-size wrench cannot swing. GEARWRENCH sells many single wrenches at this scale as fill-in pieces for mechanics who already own a set. No jaw width or drive size is published, so confirm fit against your fastener before ordering.
- 5.98 inch overall length
- 0.1 pound (about 1.6 oz) weight
- GEARWRENCH branded hand tool
- Single wrench, not a set
Who it's for
Suits mechanics and DIY users who need one specific small wrench to complete a set, or anyone working in a cramped space where a standard-length wrench cannot reach. Not a general-purpose or heavy-torque tool given the light build.
Pros and cons
- Compact enough for tight clearances
- Light enough to carry in a pocket or pouch
- From an established GEARWRENCH hand tool line
- No listed size or drive spec to confirm
- Short length limits hand torque compared to full-size wrenches
Performance notes
Its usefulness comes down to reach and grip in confined spaces rather than leverage, since the short length limits the torque a user can apply by hand.
Specifications
| Brand | GEARWRENCH |
|---|---|
| Model | 81681 |
| Dimensions & fit | |
| Item Length | 6 incheslower than 62% of 371 wrenches |
| Wrench Length Style | Standard |
| Item Weight | 0.1 poundslower than 93% of 356 wrenches |
| Construction & materials | |
| Material Type | Alloy Steel |
| Color | Chrome |
| Finish Types | Polished |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Other details | |
| Head Style | Flare Nut |
| End Style | Hang Hole |
| Operation Mode | Mechanical |
| Is Racheting | Yes |
| Is Non Sparking | Yes |
Closest rivals on specs
EKLIND 51610 Cushion Grip Hex T-Key 5/32 Inch- Item Weight 0.1 vs 0.08 pounds (+25%)
WISEUP WP032 Metric T-Handle Allen Wrench Set- Item Weight 0.1 vs 0.09 pounds (+11%)
Klein Tools JTH6M6 Journeyman T-Handle Hex Key 6mm- Item Weight 0.1 vs 0.17 pounds (-41%)
Frequently asked questions
What size is the GEARWRENCH 81681?
The listing does not publish a jaw width or drive size, only overall length (5.98 inches) and weight, so confirm the exact size against your fastener before ordering.
Is the GEARWRENCH 81681 sold as part of a set?
No, it is listed as a single wrench, likely meant to fill in a gap in an existing GEARWRENCH set.
How much does the GEARWRENCH 81681 weigh?
About 0.1 pounds, roughly 1.6 ounces, consistent with a small hand wrench.