For us, the inner core counts! As one of the first hand tool manufacturers, we have been using a principle in screwdriver production for many years that significantly reduces the amount of new plastic:
We recycle the regranulate material waste that arises during the injection molding process and return it to the production process. We also buy recycled material so that the first, inner injection can be made entirely without new material.
Press release: "Wiha was awarded the "100 Companies for Resource Efficiency" seal"
The Ministry for the Environment, Climate and Energy Economy of Baden-Württemberg also lists Wiha as a best practice: www.nachhaltigkeitsstrategie.de