Performance Tool W30405 Flare Nut Wrench 3/4 x 7/8
- Jaw Capacity: 0.7 inches
- Head Style: Flare Nut
- Operation Mode: Mechanical
- Material Type: Alloy Steel
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light, single-capacity wrench worth buying only once the 0.75 inch fit is confirmed against the fastener in question.
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ASIN: B000N35M5CModel: W30405Category: Wrenches
Overview
The Performance W30405 is a wrench weighing 6.4 ounces with a listed capacity of 0.75 inches. That capacity figure points to a specific jaw or drive opening rather than an adjustable range.
At under 7 ounces this is a light single-size wrench, not a heavy-duty or adjustable tool. The 0.75 inch capacity is the only sizing spec given, so buyers should confirm it matches the fastener or fitting they need before ordering. No handle material or finish is listed.
- 0.75 inch capacity
- 6.4 ounce weight
- Performance brand
- Listed under Tools, Wrenches
Who it's for
Fits users who already know they need a 0.75 inch capacity wrench for a specific job. Not a fit for anyone wanting an adjustable wrench that covers a range of sizes.
Pros and cons
- Light at 6.4 ounces
- Simple, fixed 0.75 inch capacity
- No handle length given
- Fixed size, not adjustable
Performance notes
With a fixed 0.75 inch capacity, this wrench is sized for one job rather than a range. The 6.4 ounce weight keeps it easy to handle in tight spaces, but the listing gives no handle length, so leverage on stubborn fasteners is not confirmed.
Specifications
| Brand | Performance Tool |
|---|---|
| Model | W30405 |
| Dimensions & fit | |
| Item Weight | 0.4 poundslower than 80% 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 | 3.4IN X 7.8IN FLARE N |
| Warranty & support | |
| Manufacturer Warranty Description | Limited Warranty |
| Other details | |
| Head Style | Flare Nut |
| Operation Mode | Mechanical |
| Item Type Name | ACCESSORIES |
Closest rivals on specs
RAK Universal Socket Tool 7-19mm- Item Weight 0.4 vs 0.35 pounds (+14%)
Astro Tools 78301 Stubby Flex Head Double Box Wrench- Item Weight 0.4 vs 0.46 pounds (-13%)
CRAFTSMAN CMMT42567 Ratcheting Wrench 3/4 Inch- Item Weight 0.4 vs 0.51 pounds (-22%)
Frequently asked questions
What size is the Performance W30405 wrench?
It has a listed capacity of 0.75 inches.
How much does the W30405 weigh?
6.4 ounces.
Is the Performance W30405 adjustable?
The listing gives one fixed capacity, 0.75 inches, with no mention of an adjustable range.