Open-end wrench STANLEY FATMAX FMMT13069-0, chromium-vanadium steel, sizes 16x17 mm, length 205 mm

STANLEY FATMAX FMMT13069-0 open-end wrench is manufactured from chromium-vanadium steel with a satin stainless finish. This dual-size spanner features 16 mm and 17 mm open ends on a single 205 mm long body and weighs approximately 140 g. Designed for general mechanical, automotive and maintenance applications, the tool provides a compact, durable option for tightening and loosening bolts and nuts where access is limited.

Advantages

The forged chromium-vanadium construction ensures high strength and wear resistance while the satin stainless finish helps resist corrosion and reduces glare during work. Dual 16x17 mm heads allow switching sizes without changing tools, saving time in mixed-size fastener tasks. The open ends are offset to improve access in confined spaces and the tool’s balanced length offers good torque control without excessive bulk.

Suitable for

• Automotive repair and maintenance
• General mechanical assembly and disassembly
• Plumbing and HVAC service work in restricted spaces
• Workshop tool kits and on-site maintenance tasks

Key specifications

• Material: chromium-vanadium steel
• Finish: satin stainless/chrome finish
• Sizes: 16 mm and 17 mm (dual open ends)
• Length: 205 mm
• Weight: approximately 140 g
• Open-end offset angle: 15° (improved access)

How to use

Select the appropriate open end (16 mm or 17 mm) and place it fully over the nut or bolt head to ensure maximum contact. Apply steady force in the intended rotation direction, keeping the wrench aligned with the fastener to reduce rounding. For work in tight spaces, use the offset open end to gain clearance for your hand or adjacent components. Inspect the wrench before use for visible damage or excessive wear and avoid using cheater bars or extensions that may overload the tool.

Usage recommendations

Use the STANLEY FATMAX 16x17 mm open-end wrench for routine fastening tasks where a compact, durable dual-size tool is preferred. Store the wrench in a tool roll or pocket holder to protect the finish and maintain accuracy. For high-torque or precision-critical fastenings, consider using an appropriate torque wrench or socket set to achieve specified torque values.