400mm Wrench Extension Bar, CR-V Chrome Vanadium Steel Leverage Tool with Dual Pivot Design, Fits 4-11mm Wrenches for Automotive Repair & Mechanical Work​

Maximize Your Torque, Minimize Your EffortTackling stubborn, rusted-on fasteners often requires more than muscle—it requires smart mechanical advantage. Our 400mm Wrench Extension Bar is engineered to provide exactly that, transforming your standard wrenches into powerful tools capable of handling the most demanding jobs.Built for the Professional and Serious DIYerCrafted from superior CR-V Chrome Vanadium Steel, this isn’t just an accessory—it’s a core component of a reliable toolkit. The robust 8mm-thick bar is designed to withstand immense pressure, ensuring it won't bend or fail when you need it most. The advanced anti-rust surface treatment guarantees performance over time, even in greasy or humid conditions.Key Features at a Glance:Material: High-Quality Chrome Vanadium Steel (CR-V)Total Length: 400mm / 15.7 inchesBar Thickness: 8mmClamping Range: Accommodates wrenches with 4mm to 11mm thicknessDesign: One-Piece Forging with Dual Pivot PointsIdeal for a Wide Range of Applications:From professional automotive repair and industrial maintenance to home DIY projects, bicycle repair, and plumbing, this extension bar is your go-to solution for achieving greater leverage safely.Package Includes:1 x 400mm Wrench Extension Bar(Wrenches shown in demonstrations are not included)We are committed to providing tools that combine intelligent design with uncompromising strength. This extension bar is a testament to that commitment, offering exceptional value and performance.

• Extra-Length Design for Superior Leverage: This 400mm (15.7-inch) extension bar provides maximum torque amplification, allowing you to loosen the toughest bolts and nuts with significantly less effort. Its ideal length offers both power and control in tight spaces.
• Premium CR-V Chrome Vanadium Steel Construction: Forged from high-grade chrome vanadium steel and treated with high-temperature quenching, this tool achieves exceptional hardness and durability. It resists deformation, wear, and corrosion for long-term reliability in professional environments.
• Secure Dual-Pivot Clamping Mechanism: The innovative dual fulcrum points, combined with a reinforced knob screw, create a vise-like grip on wrenches from 4mm to 11mm thick. This design ensures absolute stability and prevents slipping during high-torque applications.
• Universal Compatibility for Various Wrenches: Designed to work seamlessly with most box-end wrenches, combination wrenches, and ratchet sets. It’s a versatile force multiplier that enhances the capability of every mechanic's essential toolkit.
• Safety-First Engineering with Smooth Finish: Precision machined and polished to a smooth finish, eliminating sharp edges and burrs. The one-piece forged construction has no weak welds, guaranteeing user safety and comfort during extended use.