The system at a glance.
The right solution for every bolted joint: Discover the modular system of shell tools and insert tools from STAHLWILLE. Precise, durable, and built for demanding applications. Whether in industry, the workshop, or aviation—with our insert tools for torque wrenches, you're prepared for any bolted joint.
- Ratchet insert tools
- Open-ended tools and ring shell tools
- Insert tools (open-ended, ring, open ring, ratchet ring, bit, adapter)
- Welding solutions and special adapters
- Suitable for 9×12 mm, 14×18 mm, 22×28 mm (external square) and 24.5×28 mm (internal square)
Your benefits.
No matter what you are bolting together, with our insert tools you will do it accurately. Our system offers more than 400 solutions that fit seamlessly on your torque wrench. Rugged. Modular. Made in Germany.
- Maximum flexibility – one system for a wide range of applications
- Secure bolted joints – precise power transmission thanks to accurately fitting tools
- Less changeover time – modular inserts for quick changeovers
- Compatible and standardized – for 9×12 mm, 14×18 mm, 22×28 mm
- Robust and durable – made of high-quality steel
Simple guide to insert tools and shell tools
Prevent torque errors – adjusting the extension length
When you are working with insert tools, the extension length can change. This also alters the effective force loading point of the torque wrench. Here's the problem: The wrench clicks even though the actually applied torque does not match the specified value. A small deviation can have major consequences. This is the solution: Our extension length calculator lets you work out the correct setting value (WK) quickly and reliably. You can therefore be sure that your torque wrench works precisely when used with insert tools and shell tools. 👉 Tip: Our video demonstrates why the extension length is so crucial.
Extension length calculator
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