Specially forged fixed arm for 12 x 8 mm grooves. For secure fastening of guide rails from Festool, Protool, Metabo, Makita, Hitachi/Hikoki, etc. and for clamping in profiles as well as work tables. Rapid – up to 5 times faster than conventional clamps. Secure – unaffected by vibrations. Strong – clamping force up to 2.400 N