Socket Wera 8790 HMB

The Wera 8790 HMB socket is a 3/8" drive metric socket (ISO 2725‑3) for manual and machine use. It is manufactured from dull‑chromed chrome‑vanadium steel and features a ball stop groove and a slip‑proof surface for handling with oily hands. The socket is colour‑coded with Wera's "Take it easy" tool finder for quick size identification. Designed for external hexagon screws and bolts, it combines compact dimensions (20 mm diameter, 29 mm length) with reliable fit and precision.

Advantages

The socket supports both manual and machine operations per ISO 2725 part 3 and includes a ball stop groove to secure fasteners during work. Dull‑chromed chrome‑vanadium construction provides corrosion resistance and durability. The slip‑proof finish improves grip when hands are oily, and the "Take it easy" colour coding speeds up tool selection.

Suitable for

• Working with external hexagon screws and bolts
• Manual tightening and loosening using a 3/8" drive ratchet or handle
• Machine applications requiring ISO 2725‑3 sockets
• Automotive and mechanical maintenance where a compact socket is needed

Key specifications

• Brand: Wera
• Model: 8790 HMB
• Drive: 3/8"
• Standard: ISO 2725 part 3
• Material: Chrome‑vanadium, dull‑chromed
• Diameter: 20 mm
• Length: 29 mm
• Made in: Taiwan
• MPN: 05003558001
• EAN: 4013288120380

How to use

Select the socket by matching the colour code or size marking to the fastener. Fit the socket onto a compatible 3/8" drive ratchet or machine adapter. Use the ball stop groove to hold the screw or bolt head in place while positioning, then tighten or loosen as required. After use, wipe clean and store in a socket rail or toolbox to avoid corrosion and loss.

Usage recommendations

Use the socket only with matched 3/8" drive tools and within the torque limits appropriate for the fastener and application. Avoid exceeding recommended torque to prevent damage. Keep the socket clean and lightly lubricated if exposed to corrosive environments.