Mr.wintek PRO 21mm Scaffolding Impact Socket 1/2" Drive with Retaining Pin & O-Ring, 6 Point Design and 52mm Length Socket, Deep Yellow Embossed Marking, CR-MO Steel for Scaffolding Coupler

• 【HIGH QUALITY IMPACT SOCKET】Mr.wintek 1/2 drive 21mm impact socket is designed for erecting scaffolding outdoors or at height. It can securely tighten the nuts on the scaffolding clamps and also ensure that the socket will not fall off when the scaffolding is dismantled.
• 【35MM INNER DEPTH】52mm full length + 35mm inner depth is suitable for scaffolding with common pipe diameters, such as 48.3mm. For large diameter pipes or long bolts, the length should be estimated to avoid insufficient depth.
• 【CR-MO MATERIAL】Mr.wintek 21mm socket is made of cr-mo material, which has excellent hardness and wear resistance. It can better withstand impact and is not easy to break even when the nuts on the scaffolding clamps need to be frequently disassembled and assembled. The surface of the socket has a black phosphating coating, which can further resist corrosion and is suitable for long-term outdoor use.
• 【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.
• 【6-POINT DESIGN】The 6-sided design allows the socket to fit tightly against the six sides of the nut, avoiding local stress concentration and reducing the risk of slipping. It can provide more reliable operational stability during aerial work. It can also protect the integrity of the bolt and reduce replacement costs.
• 【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.

Mr.wintek PRO 21mm Scaffolding Impact Socket 1/2" Drive with Retaining Pin & O-Ring, 6 Point Design and 52mm Length Socket, Deep Yellow Embossed Marking, CR-MO Steel for Scaffolding Coupler