Abstract: a Cap popper that allows popping caps as fast as you can turn a lever.

Abstract: A reaming tool is capable of reaming out several axially interspaced borings of a workpiece. The reaming tool includes a guide shank that can be clamped into a machine spindle and which can be supported in prepared borings of the workpiece to be machined by using external supporting elements. The reaming tool also includes a reaming head coaxially connected on the front end thereof. In order to be able to easily change a worn tool, the reaming head is connected to the guide shank by an auto-centering clamping mechanism. The supporting elements positioned in the proximity of the clamping mechanism can, during a clamping process, be radially spread outwardly from a smaller dimension to a predetermined diameter guide dimension.

Abstract: The invention relates to a reaming tool for reaming out several axially interspaced borings (14) of a workpiece (12). The reaming tool comprises a guide shank (16) which can be clamped into a machine spindle and which can be supported in prepared borings (14) of the workpiece (12) to be machined using external supporting elements (18). The reaming tool also comprises a reaming head (26) which coaxially connects on the front end thereof. In order to be able to easily change a worn tool, the invention provides that the reaming head (26) can be connected to the guide shank (16) by means of an auto-centering clamping mechanism (30), and that the supporting elements (18) positioned in the proximity of the clamping mechanism (30) can, during a clamping process, be radially spread in an at least partial manner from a dimension smaller than that of the diameter to a predetermined diameter guide dimension.