The tools are adjusted. The adjustment capacity for every diameter is 0, 5 mm. The tools have an adjustment mechanism which gives the possibbilty to adjust very high precision measurements. This mechanism provides adjustment precision up to 0, 0050 mm. Yamasa mx type roller burnishing tools for cylindrical shafts can work in h8 tolerances with a single adjustment. These tools are capable to process all kinds of materials with 1400 n/mm2 tensile strength and hardness up to max. 42-45 hrc. Tools work by turning to right. Either tool or workpiece may turn. These tools can be used on universal or cnc lathes, machining centers, drilling machines or other machines which process by turning. The tools can be tied to all machines easly and practically. Tools have rather a long life. It is possible to use the tools for a long time without size change due to abrasion.