This is a 10mm impact socket with a 1/2in square drive, designed to be used with impact wrenches, pneumatic or electric rattle guns and breaker bars for rapid removal and installation of 10mm hex fasteners. It is intended for heavy-duty, repetitive applications where normal chrome vanadium sockets would be prone to cracking under shock loads.

Manufactured from chrome‑molybdenum (Cr‑Mo) alloy steel and heat treated for increased toughness, the socket has a black phosphate / matt oxide finish to reduce corrosion and protect the working surface from chipping under impact. The internal profile is a 6‑point (hex) design to sit fully on the flats of a bolt head or nut and reduce rounding, and the drive is a 1/2in (12.7mm) square recess compatible with standard 1/2in impact tools. Thread type is not applicable for this product as it is a socket; the outlet includes a sprung detent or retention hole to accept a retaining pin/ball on the drive tool for secure fitment during use.

Dimensionally the socket is produced to meet recognised DIN/ISO/BS dimensional tolerances for impact sockets and drive interfaces so it will interchange reliably with other 1/2in drive tooling. The material and heat treatment give it high tensile strength and improved impact resistance compared with non‑impact sockets, making it suitable for sustained torque and shock loading.

Typical applications include automotive and vehicle maintenance, commercial vehicle and fleet workshops, agricultural machinery repair, plant maintenance, construction plant servicing and motorsport paddocks. Use it wherever repetitive, high‑torque loosening or tightening of 10mm fasteners is required and where durability and operator safety under impact loading are important.

Key benefits are the Cr‑Mo construction for superior toughness under impact, the black phosphate finish for corrosion resistance, the 6‑point profile for improved fastener engagement and the 1/2in drive compatibility with common impact tools. Duchy Fasteners stocks this 10mm impact socket individually and in bulk packs, and carries a comprehensive metric 1/2in socket range across standard sizes (typically 4mm–32mm) as single items or sets for workshop use.