18/08/2026
A customer generally used heat-treated AISI 4340 and DIN 1.2344 steels at different hardness levels for its end milling tool holders.
The main problem was long production times caused by the heat treatment. Even if the heat treatment improved the hardness, the steel became brittle which led to cracks.
Toolox® 44 was a better option. It is already hardened and tempered, resulting in a tougher tool that lasts 15 times longer and is faster to produce.
✔️ Up to 15 times longer tool holder life.
✔️ Faster manufacturing with fewer production steps.�
✔️ Higher toughness and improved resistance to cracking.
Sometimes the best way to improve productivity isn't by changing the design, it's by choosing the right material from the start.