For the flexible fastening of your nuts and bolts, turn to this four-piece spanner set from Wera. The tools in this versatile kit are designed to grip hexagonal bolt heads measuring 10 x 159mm, 13 x 177mm, 17 x 224mm and 19 x 246mm, so you have many jobs covered. As each tool has a ring end with 80 teeth, it holds firmly to fasteners so you can get to grips with tough tightening tasks.

• Tough molybdenum steel body holds up against impact and wear
• Included pouch provides you with a neat storage solution
• Replaceable jaw plate prevents slipping for efficient fastening

• Electrical engineering
• DIY projects
• Automotive repair

Yes. They have a nickel-chrome coating that stands up to corrosion, so they're suitable for use in harsh environments.