| 摘要 |
The multipurpose expansion work device (10), adapted for the cutting, incision or expansion of metal tubes (T), comprises a tubular body (11) of support for a work tool (12) axially insertable in a metal tube (T), the work tool (12) having a plurality of elastically spreadable longitudinal arms (14), externally provided with an operating edge (15) intended to come into contact with an inner surface (T') of the metal tube (T). The device (10) also comprises an expansion member (16) for divaricating the elastic arms (14), which is provided at a first end with a conical divarication head (17), converging or diverging towards a linear actuator (18) connected at a second end to the expansion member (16). The device (10) moreover comprises manually operable stop means (20) for adjusting the insertion depth of the tool (12) inside the metal tube (T). |
