Professional Quality: Socket adapter is made of premium chrome molybdenum alloy steel,this impact adapter set provides strength and excellent durability,easily extending the range of ratchets and sockets, this tool provides greater flexibility.

Unique Design: Each adapter features a built-in spring-loaded detent ball that locks securely into the socket. With header adapters and reducers, the sockets will not come off or the corners of the fasteners will be rounded.

Additional Durability: The sleeve reducer surface is phosphated for extra protection. The flat black finish is also more slippery than chrome, which is great for pulling adapters off torque wrenches or non-"quick release" ratchets/extensions.

Widely Applicable Crowd: The sleeve reducer will be suitable for maintenance technicians in aircraft, automobiles, industries,etc., which providing great convenience for them to engage in life and work