Hex key set STAHLWILLE 735/20 — metric 14 mm & 18 mm, 1 ratchet head, black stainless steel

STAHLWILLE 735/20 is a compact hex key set designed for turning large metric hex fasteners. The tool combines two fixed hex key sizes, 14 mm and 18 mm, with an integrated ratchet head for controlled manual torque. Made from stainless steel with a black finish and weighing approximately 302 g, this tool is intended for workshop and maintenance environments where corrosion resistance and straightforward operation are required.

Advantages

The stainless steel construction provides enhanced resistance to corrosion while maintaining dimensional stability under manual loads. Inclusion of a ratchet head allows reversible operation without repositioning the tool on the fastener, improving efficiency in confined spaces. The compact two-size design reduces tool bulk compared with multiple individual keys, and the black finish offers additional surface protection and reduced glare during use.

Suitable for

• Maintenance and repair of machinery with large metric hex bolts
• Workshop assembly and disassembly tasks requiring 14 mm and 18 mm hex engagement
• Field service work where a compact, corrosion-resistant hex tool is advantageous

Key specifications

• Hex sizes: 14 mm and 18 mm
• Material: stainless steel
• Finish: black surface treatment
• Integrated ratchet head for reversible operation
• Weight: approximately 302 g

How to use

Select the hex size that corresponds to the fastener head and engage the key fully into the hex socket to ensure correct seating. Use the ratchet head to apply torque in the required direction; reverse the ratchet to change turning direction without removing the tool from the fastener. Apply steady, controlled force to avoid rounding the fastener edges and inspect the tool and fastener for damage after use.

Usage recommendations

For reliable performance, keep the tool clean and dry and periodically check the ratchet mechanism for smooth operation. Use appropriate personal protective equipment when working on pressurised or suspended components. Avoid excessive impact loading or use with power tools to prevent deformation or damage to the hex key and fasteners.