This 17mm 3/8" drive deep socket is a metric, 6-point socket designed to access recessed or long-stud hexagon nuts and bolts where a standard shallow socket cannot reach. Its primary use is to give secure engagement with 17mm hex fasteners while fitting standard 3/8" (9.5mm) square drive ratchets, extensions and torque wrenches, making it suitable for routine fastening and removal tasks.

Manufactured from chrome vanadium (Cr-V) steel and heat-treated for torsional strength, the socket has a polished chrome-plated finish to resist corrosion and ease cleaning. The tool is machined to the correct metric hexagon profile to work with ISO/DIN/BS metric fasteners and is compatible with industry-standard 3/8" drive accessories. As a deep socket, it provides additional axial reach over a standard socket, allowing nuts to be withdrawn onto the socket or for bolts with long protruding threads to be worked without obstruction.

Typical applications include automotive repair and maintenance where wheel, engine and suspension fasteners are often recessed, general workshop and plant maintenance, agricultural machinery servicing, and construction or mechanical engineering tasks requiring access to fasteners in tight or deep locations. The secure 6-point engagement reduces the risk of rounding fastener edges compared with wider contact designs and makes it better for high-torque situations.

Key benefits of this 17mm deep socket include good corrosion resistance from the chrome finish, reliable strength from Cr-V construction and heat treatment, and broad compatibility with standard 3/8" drive tools and extensions. Its metric sizing and conformity to common hex profile standards ensure a precise fit on 17mm nuts and bolts, improving safety and reducing slippage under load.

Duchy Fasteners stocks this style of Draper Tools socket across a wide metric range; sizes from small to large (commonly 6mm–32mm) are available and items can be purchased singly or as part of multi-piece socket sets and packs to suit workshops and professional users.