KS TOOLS Single Impact Ring Spanner, 40 mm (517.0540)

The KS TOOLS single open-end impact spanner is a heavy-duty tool engineered for demanding industrial applications where high torque and impact forces are the norm. Its 40 mm jaw size and robust construction make it ideal for tightening and loosening large fasteners in automotive, construction, and maintenance settings. The phosphated black finish provides excellent corrosion resistance, ensuring longevity even in harsh environments.

Advantages

Built from special steel designed for impact tools, this spanner withstands the stress of pneumatic or electric impact wrenches without deformation. The straight head design offers easy access to fasteners in tight spaces, while the phosphated coating reduces friction and protects against rust. Its compliance with DIN 3110 and ISO 10102 guarantees dimensional accuracy and performance reliability.

Suitable for

• Heavy machinery maintenance and repair
• Automotive assembly and disassembly
• Construction and steel structure work
• Industrial plants and workshops
• Use with impact wrenches or manual slugging

Key specifications

• Spanner size: 40 mm
• Material: Special steel for impact tools
• Finish: Phosphated, black
• Overall length: 200 mm
• Head width: 80 mm
• Head thickness: 15 mm
• Standard: DIN 3110, ISO 10102
• Type: Single open-end, straight head

Recommendations

For professional technicians who require a reliable spanner for high-torque impact applications, the KS TOOLS 517.0540 delivers durability and precision. Pair it with a compatible impact wrench for efficient operation, and store in a dry environment to maximize the life of the phosphated finish.