The mechanics of the twin-screw vice ensure parallelism and almost completely eliminate the racking common in other vices. The two independent screw assemblies allow boards to be clamped upright between the two screws. 4 bronze bushings and axial bearings ensure smooth screw movement and reduce wear. The T-piece can be fitted on the left or right. Also suitable for retrofitting. Available in two widths (screw spacings). English mounting instructions. Max. opening 230 mm, screw Ø 28 mm. For mounting the twin-screw vice, you require the installation kit No. 705728 and a 32 mm (1 1/4"), 28.5 mm (1 1/8") and 22.2 mm (7/8") drill.