Screw driver including a holding device

摘要

A screw driver ( 50 ) for use with electrical appliances under voltage includes a handle ( 1 ) and a functional part ( 2 ) with a shank ( 3 ) and an end piece ( 5 ). The shank ( 3 ) is designed to be partly covered by an insulating sleeve ( 9 ) made of plastic. The end piece ( 5 ) is insulated and connectable to said handle ( 1 ) so that torque is transferable from said handle ( 1 ) to said functional part ( 2 ). The handle ( 1 ) is insulated from said shank ( 3 ). Furthermore the screw driver ( 50 ) includes a holding device ( 11 ) which is connected to the handle ( 1 ) and comprises a secured position and a released position. The holding device ( 11 ) is manually operable between the secured position and the released position. In the secured position the holding device ( 11 ) positively engages the functional part ( 2 ) such that the functional part ( 2 ) cannot be detached from the handle ( 1 ). In the released position the functional part ( 2 ) is allowed to be detached from said handle ( 1 ).