Downhole wireline tool

A downhole wireline tool for performing a machining operation, such as milling, in a well having a top, the downhole wireline tool having a longitudinal axis, a first end configured to be connected to a wireline and a second end forming a front of the tool facing away from the wireline along the longitudinal axis, the downhole wireline tool comprising:

• a tool housing,
• a holding section having projectable parts configured to prevent a part of the downhole wireline tool from moving in a direction towards the top,
• a machining tool arranged in the front of the tool, and
• a rotation unit for rotating the machining tool,
• wherein the downhole wireline tool further comprises an oscillation device having a rotational stationary part being connected with the rotation unit and a rotational part being connected to the machining tool, the oscillation device being configured to provide an oscillating movement of the machining tool by oscillating the rotational part in relation to the rotational stationary part, and wherein the rotational stationary part and the rotational part of the oscillation device have serrations providing the oscillating movement.