Klein Tools 3214 Spud Wrench 1-5/8 Inch
- Jaw Capacity: 1.6 inches
- Measurement Standard: SAE (Inch)
- Head Style: Box End
- End Style: Hang Hole
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
The length and jaw capacity mark this out as a wrench built for large pipe fittings, not an everyday tool for small fasteners around the house.
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ASIN: B00093D5SCModel: 3214Category: Wrenches
Overview
The Klein 578 is an 18 inch wrench with a 1.63 inch jaw capacity, weighing 1.5 kilograms. Its length and capacity put it in the range built for large pipe and fitting work rather than small fasteners.
An 18 inch handle gives extra leverage for stubborn or oversized fittings, and the 1.63 inch capacity opens wide enough for larger pipe or hex stock than a standard hand wrench. Klein has built its reputation on trade tools for electricians and mechanics, and this wrench fits that heavier duty niche.
- 18 inch overall length
- 1.63 inch jaw capacity
- 1.5 kilogram weight
- Klein brand construction
Who it's for
Fits electricians, plumbers, and mechanics who need extra leverage and a wide jaw opening for large pipe or fittings. Overkill for small nuts and bolts that a standard wrench already handles.
Pros and cons
- 18 inch length adds leverage for stubborn fittings
- 1.63 inch jaw capacity fits larger pipe and stock
- Klein build quality aimed at trade use
- Less convenient for small fastener work
Performance notes
The 18 inch length multiplies applied force for loosening or tightening large or seized fittings, while the 1.63 inch capacity accommodates stock too wide for a standard wrench.
Specifications
| Brand | Klein Tools |
|---|---|
| Model | 3214 |
| Dimensions & fit | |
| Item Length | 18 incheshigher than 89% of 371 wrenches |
| Wrench Length Style | Standard |
| Item Weight | 3.31 poundshigher than 76% of 356 wrenches |
| Capacity & performance | |
| Jaw Capacity | 1.6 incheshigher than 78% of 165 wrenches |
| Construction & materials | |
| Material Type | Alloy Steel |
| Color | Black |
| Finish Types | Black Oxide With A Rust Preventative |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Included Components | Tools & Accessories |
| Warranty & support | |
| Manufacturer Warranty Description | 1 year manufacturer |
| Other details | |
| Measurement Standard | SAE (Inch) |
| Head Style | Box End |
| End Style | Hang Hole |
| Operation Mode | Mechanical |
| Is Racheting | No |
| Is Non Sparking | Yes |
| Item Type Name | Klein Tools 3214 Spud Wrench, 1-5/8-Inch Nominal Opening, 1-Inch Bolt For U.S. Heavy Nut |
Closest rivals on specs
MAXPOWER MXP342 Adjustable Strap Wrench Set 2 Piece- Item Weight 3.31 vs 2.87 pounds (+15%)
GEARWRENCH 85176 120XP Micrometer Torque Wrench 3/8 Inch- Item Weight 3.31 vs 3.86 pounds (-14%)
ACDelco ARM601-4 Digital Torque Wrench 1/2 Inch- Item Weight 3.31 vs 3.9 pounds (-15%)
Frequently asked questions
How long is the Klein 578 wrench?
It measures 18 inches in length.
What is the jaw capacity of the Klein 578?
It has a 1.63 inch capacity.
How much does the Klein 578 weigh?
It weighs 1.5 kilograms.