Door - tool, in particular a bar of a bore having two tools or more, for example of the tools of roughing and finishing machines - tools has removal of chips.

摘要

The invention relates to a tool holder, in particular a drilling bar with two or more tools, e.g. semi-finishing and fine-finishing tools, in particular for cutting machine tools. It is known to execute the finishing of the drilling work on the workpiece with semi-finishing and fine-finishing tools arranged on the same drilling bar in order to reduce errors in the dimensional, shape and positional accuracy. However, the elastic system consisting of the workpiece, device, machine and tool and therefore also the drilling bar is deformed by the cutting forces. The object of the invention is to avoid this deformation. This is achieved by providing, between the parts of the tool holder carrying the various finishing tools, at least one continuous gap, open at one end, extending to the clamping plane or to the vicinity of the clamping plane.