Multi-edged machining tool for post-machining of bores

Multi-edged machining tool for post-machining or precision machining of bores, in particular a reamer, for machining deep bores or a plurality of axially separated bores of the same dimensions and quality, such as bores for accommodating bearing bushings for a camshaft, having at least one cutting edge set (32) with a predefined nominal diameter (D32) and cutting edges (32-1 to 32-6) distributed essentially uniformly over the circumference and a guide body arrangement offset axially thereto, characterised in that the guide body arrangement is an integral component of an essentially cylindrical guide body (36) which consists of solid carbide (SC) and forms at least n helical guide ribs (38-1 to 38-4) which are at a uniform circumferential distance from each other and to which a nominal diameter (D38) is assigned which is essentially smaller by twice the size of a lubrication gap which forms during use of the tool than the nominal diameter (D32) of the cutting edge set (32) which is adjacent in the feed direction, and which extend through a centring or wrap angle which is greater than 360°/n, where:

• n≧2.