The cutting edges of the regular Herdim reamers are bevel ground to a sharp edge, resulting in an aggressive cutting action. This smoothing reamer however has cutting edges which are on one side slightly rounded, according to the radius of the reamer. This reduces the cutting performance but improves the surface quality and roundness of the hole. We recommend using this reamer as a finishing tool in addition to the regular reamers, for highest demands in the peg fitting process.
Spiral cutting edges with TIN coating.
