The Wera 8790 HMB Deep 3/8" Drive Hexagon Socket in 21mm handles larger fasteners with the added advantage of a 64mm deep profile, enabling access to bolts set below surface level or paired with long threaded shanks that would prevent a standard socket from engaging correctly. Conforming to ISO 2725 part 3, it is rated for manual ratchet and machine operation (non-impact), offering flexibility for a wide variety of tasks. The hexagonal profile ensures clean, precise engagement and efficient power transmission, while the knurled lower end delivers a firm grip for hand use — particularly useful in tight or difficult-to-reach positions. Wera's 'Take it easy' colour system makes locating the 21mm quick and straightforward. Features and Benefits: • 64mm deep length for low-lying and recessed fastener access • Hexagonal profile for precise, high-torque bolting • 'Take it easy' colour coding for quick size identification • Knurled lower end for secure, slip-proof manual grip • Ball intercept ring for drive retention • Matt chrome-plated chrome-vanadium steel Contents: 8790 HMB Deep 3/8" socket, 21 x 64mm Specifications: Drive Size: 3/8" Socket Size: 21mm Length: 64mm
