Mr.wintek PRO 21mm Scaffolding Impact Socket 1/2" Drive with Retaining Pin & O-Ring, 12 Point Design and 52mm Length Socket, Deep Yellow Embossed Marking, CR-MO Steel for Scaffolding Coupler

• 【PRECISION 12-POINT DESIGN】Featuring a precision 12-point design, this socket is uniquely versatile, engineered to fit both 6-point and 12-point bolts securely. It requires only a minimal swing arc for repositioning, enabling highly efficient operation in tight, confined spaces. This dual compatibility eliminates the need for multiple sockets, simplifying your toolkit. The design also distributes torque more evenly to prevent fastener rounding, making it a smarter.
• 【RETAINING PIN AND O-RING】The retaining pin and O-ring are made of high-quality materials and are not easy to damage. The two work together to lock the socket and the impact wrench to prevent the socket from loosening due to vibration or tilting during operation, thereby causing safety hazards. The fixed structure can also reduce the slippage between the socket and the impact wrench, so that it does not slip during high torque operations.
• 【QUICK-READ MARKINGS】Deeply embossed and paint-filled size markings, paired with a bright yellow base groove, enable instant recognition. Far more durable than cheap laser etching that wears off, this system guarantees lasting clarity throughout the tool’s lifespan—even in dimly lit garages or under demanding working conditions.
• 【CR-MO MATERIAL】The Mr.wintek 21mm socket is made of premium Chrome-Molybdenum (CR-MO) steel, which provides superior impact resistance. This material is further enhanced by a corrosion-resistant, non-reflective, and wear-resistant black phosphate finish. This robust coating effectively resists oil, grease, and moisture, ensuring reliable performance and an extended service life even in the most demanding working conditions.
• 【WIDE APPLICABILITY】This 21mm impact socket is built for heavy-duty applications and fully compatible with impact wrenches. Its exceptional impact resistance ensures efficient utilization of your tool's full power. Ideal for high-torque tasks including scaffolding installation (securing scaffolding bolts/connectors), automotive repair (wheel and axle nuts), heavy-duty equipment maintenance, and industrial assembly, it’s a trusted partner for professional technicians.
• 【SATISFACTION GUARANTEE】Our socket exceeds the ANSI standards, demonstrating our commitment to providing high-quality products. We have great confidence in the quality of our MR.WINTEK socket. If you have any questions or concerns, please feel free to contact our customer support team. We will make sure you are satisfied with our products.

Mr.wintek PRO 21mm Scaffolding Impact Socket 1/2" Drive with Retaining Pin & O-Ring, 12 Point Design and 52mm Length Socket, Deep Yellow Embossed Marking, CR-MO Steel for Scaffolding Coupler