Socket Wera 8790 HMA

Socket Wera 8790 HMA is a 1/4" (ISO 2725-3) hand and machine socket with ball intercept ring, designed for external hexagonal bolts and nuts. The socket supports manual and machine (non-impact) operation, including work in confined spaces and around protruding threaded studs. It features Wera's Take it easy tool finder with colour coding by size for quick identification and an outer surface that remains easy to grip even with oily hands. The hexagon profile enables transmission of high torque while reducing stress on bolt and screw edges compared with double-hex profiles; the fine-toothed ratchet return angle further improves usability in tight spaces.

Advantages

The Wera 8790 HMA provides secure engagement with external hex fasteners and reduces rounding thanks to its hexagon profile. Colour coding by size accelerates tool selection. Its 1/4" drive and fine-toothed compatibility allow precise work in confined areas. The ball intercept ring ensures reliable retention on the drive, and the ergonomic outer surface helps maintain grip under oily conditions.

Suitable for

• Manual tightening and loosening of external hex bolts and nuts (non-impact)
• Machine operation with non-impact drivers
• Work in confined spaces or on low-profile fasteners
• Applications with protruding threaded studs

Key specifications

• Brand: Wera
• Model: 8790 HMA
• Drive size: 1/4" (ISO 2725-3)
• Material origin: Made in Taiwan
• Length: 50 mm
• External diameter/width: approx. 11.8 mm (socket width 11.8 mm; hexagon fit corresponding to metric size)
• Diameter (head): approx. 1.1 cm
• MPN: 05004505001
• EAN: 4013288210289

How to use

Select the correctly coloured Wera 8790 HMA socket for the required metric hex size, attach it to a compatible 1/4" drive ratchet or non-impact machine driver, and push until the ball intercept ring engages to hold the socket on the drive. Place the socket over the external hex fastener, apply steady torque for tightening or loosening, and use the fine-toothed ratchet action where space is limited. Avoid use with impact tools.

Usage recommendations

Use only with non-impact hand or machine drivers rated for 1/4" drives; avoid impact wrenches. Keep the socket clean and lightly lubricated if exposed to corrosive conditions. Verify fit before applying high torque to prevent damage to fasteners.