Futuro Top Quick-Change Drill Chuck, 16 mm, B 18. The first impact-resistant quick-change drill chuck with built-in spring clamping force safety and double dust protection. Keyless for quick tool changes. Secure hold of the clamped tools even under the toughest conditions. The oil- and wear-resistant rubber bellows protect the threads and fits from contamination. For use only with right-hand rotation machines.