Heavy-Duty Straight Jaw Locking Pliers

Industrial straight jaw locking pliers stamped from high-strength alloy steel. Features full heat-treated forged jaws, straight teeth for flat stock clamping, adjustable tail bolt, and guarded release lever for safe clamping up to 1300 kg.

Product Introduction

Engineered for heavy-duty clamping, welding, and metal fabrication, our Straight Jaw Locking Pliers (W29025 – W29027 Series) provide maximum contact area and clamping force on flat stock, square profiles, and hex fasteners. The tool body is precision-stamped from high-strength alloy steel, while the jaws are drop-forged from premium alloy steel and undergo full-body heat treatment for exceptional structural rigidity and wear resistance. Straight jaw teeth distribute clamping pressure evenly across flat surfaces to prevent slippage during intense machining or welding. Featuring a knurled tail screw to finely tune jaw opening and locking tension up to 1300 kg, as well as a guarded safety release lever (anti-pinch design) that buffers handle snap-back during unlocking. Available in 180mm (7″), 220mm (10″), and 255mm (12″) heavy-duty sizes.

Product Features

High-Strength Alloy Steel Stamping Body
Stamped from premium alloy steel for superior structural durability and heavy load resistance.

Forged Jaws with Full Heat Treatment
Drop-forged alloy steel jaws with complete heat treatment deliver maximum hardness and long service life.

Straight Jaw Profile for Flat Stock
Straight teeth design maximizes contact surface area on flat plates, square bars, and sheet metal.

Tail Screw Fine Adjustment
Knurled tail bolt enables precise calibration of jaw opening size and locking pressure up to 1300 kg.

Guarded Safety Release Lever
Anti-pinch release lever controls snap-back force during unlocking, preventing user hand injuries.

Technical Specifications

Item No. Model Spec Size Length (L) Max Opening Depth (S) Clamping Force Inner Box Master Carton Net Weight Gross Weight
W29025 DL-XI-7 180 mm 178 mm 36 mm 30 mm 1135 kg 6 pcs 48 pcs 0.37 kg 18.00 kg
W29026 DL-XI-10 220 mm 216 mm 44 mm 31 mm 1135 kg 6 pcs 36 pcs 0.52 kg 18.50 kg
W29027 DL-XI-12 255 mm 255 mm 50 mm 35 mm 1300 kg 6 pcs 24 pcs 0.68 kg 18.00 kg

Applications

Sheet Metal Fabrication & Welding: Securely clamping flat steel plates, sheet metal, and angle irons prior to welding.
Square Stock & Machine Shop Maintenance: Gripping square bars, flat blocks, and hex nuts for drilling, cutting, or fastening.
Automotive & Body Shop Repair: Holding body panels, frame tabs, and flat brackets tightly in place.
General Heavy Industrial Maintenance: High-torque clamping, bending, pulling, and temporary vise clamping in factory environments.

Why Choose Us

Maximized Surface Grip Power
Straight jaw geometry maximizes clamping contact on flat workpieces with up to 1300 kg locking force.

Guarded Anti-Pinch Safety
Special safety release design prevents aggressive snap-back, lowering workplace injury risks.

Factory Direct B2B Wholesale Margins
Direct manufacturer supply model delivers high margins for tool importers, hardware wholesalers, and brand distributors.

FAQ

Q1: What is the main difference between straight jaw and curved jaw locking pliers?
A1: Straight jaws are designed to maximize surface contact on flat, square, and hexagonal workpieces, whereas curved jaws wrap better around round pipes and tubes.

Q2: What is the maximum clamping force for this straight jaw series?
A2: Model W29025 (7″) and W29026 (10″) deliver 1135 kg clamping force, while model W29027 (12″) delivers up to 1300 kg.

Q3: How does the “Guarded Safety Release Lever” (anti-pinch design) benefit the user?
A3: The guarded release lever buffers the spring tension during unlocking, preventing the lower handle from snapping back forcefully and pinching your hand.

Q4: How do I tune the jaw opening and clamping pressure?
A4: Turn the knurled tail bolt clockwise to decrease jaw opening and increase clamp tightness, or counter-clockwise to widen the opening.

Q5: Do you support custom OEM logos and personalized packaging?
A5: Yes! We provide full OEM/ODM services, including laser logo marking on the steel handle, custom handle finishes, and custom blister card or color box packaging.

OEM/ODM Customization Services

We provide full custom manufacturing solutions for global tool distributors and brands:

Custom Branding
Laser etching, steel stamping, or pad printing your brand logo on the tool body.

Surface Finish Customization
Nickel-plated finish, black oxide finish, or comfortable rubber-dipped handle options.

Retail Packaging Solutions
Double blister cards, color boxes, hanging cards, or bulk industrial master packing.