Hex Key KWB 371990 100 mm depth 185 mm width 34 mm height

The KWB 371990 hex key set includes 13 hex sockets ranging from 4 mm to 13 mm, a 1/4" drive reversible ratchet, a 50 mm extension and a nut spinner. Made from CrV steel and presented in a compact format (100 mm depth, 185 mm width, 34 mm height), the set is intended for precise fastening and loosening of hex screws in both professional and DIY environments.

Advantages

The CrV-steel construction provides corrosion resistance and long service life. A 1/4" drive reversible ratchet enables quick direction changes without removing the tool, while the included 50 mm extension improves access to recessed fasteners. The nut spinner offers efficient manual turning where power tools are unsuitable. The compact dimensions make the set easy to store and transport.

Suitable for

Key specifications

How to use

Select the appropriately sized hex socket for the fastener and attach it to the 1/4" drive ratchet or extension as required. Use the reversible ratchet to tighten or loosen bolts with alternating direction as needed; insert the extension for recessed or hard-to-reach screws. For quick manual turning of nuts or bolts, use the nut spinner. Store the set in a dry place after use to maintain condition.

Recommendations

Use appropriate personal protective equipment and avoid excessive torque beyond the tool's capacity. Regularly clean and lightly oil the ratchet mechanism to ensure smooth operation and extend tool life.