IRWIN Vise-Grip 12L3 Large Locking Pliers 12 in
- 12 inch large locking pliers
- 300 millimeter jaw measurement as listed
- Alloy steel body and handles
- 678 grams, 14.12 x 4.06 inches
- Limited lifetime warranty
- Industry standards compliance listed
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large locking plier from Irwin sold under the Vise-Grip name, listed for tightening, clamping, twisting and turning. The seller gives no jaw opening in practical terms.
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ASIN: B00004SBB1Model: 12L3Category: Pliers
Overview
Not a fixed-jaw plier, this Vise-Grip style tool clamps onto the work and stays locked until released. It is cut from alloy steel, with an ergonomic grip and a silver finish, and a long reach for large pieces.
A long locking tool covers clamping, twisting and turning in one piece of steel. The limitations are the missing opening width and the lack of a jaw shape description in the listing.
Who it's for
Welding, metal fabrication and repair work where a hand clamp frees both hands suit a large locking plier. Light household jobs may be better handled by a smaller pair.
Pros and cons
- Locks onto the work
- Alloy steel construction
- Long reach for big pieces
- Limited lifetime warranty
- Jaw opening width unclear
- Heavy for light jobs
- Jaw shape not described
- Listing is brief
Performance notes
A locking mechanism holds the jaws closed on the work, so the grip stays without hand pressure once set. Clamping force depends on the adjusting screw and the long handle leverage. The listing does not describe the jaw teeth or release lever.
Specifications
| Brand | Irwin |
|---|---|
| Model | 12L3 |
| Dimensions & fit | |
| Cutting Width | 300 millimetershigher than 97% of 197 pliers |
| Item Dimensions L X W | 14.12 x 4.06 inches |
| Item weight | 678 grams |
| Construction & materials | |
| Material Type | Alloy steel |
| Handle Material | Alloy steel |
| Color | Silver |
| Included components | |
| Included Components | 12L3 large 12 inch locking pliers |
| Unit Count | 1.0 Count |
| Warranty & support | |
| Manufacturer Warranty Description | Limited lifetime |
| Other details | |
| Grip Type | Ergonomic |
| Specific Uses For Product | Tightening, clamping, twisting, turning |
| Item Type Name | Locking pliers, 12 inch large jaw |
| Set Name | Irwin 12L3 Vise-Grip Locking Pliers Set |
| Specification Met | [General Industry-Specific Standards Compliance] |
Closest rivals on specs
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Channellock 415 Smooth Jaw Tongue and Groove Pliers 10 in- Item Weight 1.49 vs 0.9 pounds (+66%)
- Cutting Width 11.8 vs 10 inches (+18%)
Klein Tools D2000-9ST Ironworker Side Cutters 9 in- Item Weight 1.49 vs 1.1 pounds (+35%)
- Cutting Width 11.8 vs 9 inches (+31%)
Frequently asked questions
What is included with the Irwin 12L3?
One 12 inch large locking plier. The set name mentions a set, but the included components name only a single pair.
What is the Irwin 12L3 used for?
The listing names tightening, clamping, twisting and turning.
What is the Irwin 12L3 made of?
Alloy steel for both the body and the handles.
What warranty covers the Irwin 12L3?
A limited lifetime warranty.