Punching steel sheets (St 37) and plastics – quickly, easily, cleanly and without burrs! ■ Suitable for sheet metal (St 37) thickness: 2.0 mm with screws Ø 9.5 mm or 3.0 mm with screws Ø 19.0 mm. ■ Exceeding these values can lead to damages on the tension screws. When operating with the spanner, make sure you grease the tension screws. (lubricating paste Prod.-No. 33005) ■ Pre-drilling: Screws Ø 9.5 mm: Ø 11.0 mm Screws Ø 19.0 mm: Ø 20.5 mm ■ Using tension screws with ball bearings > saves energy during hand operation, by reducing the friction between the punch and die.