YAMASA DX type roller burnishing tools for cylindrical holes 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. 45 HRC. Tools work by turning with a direction of process towards right. Either tool or workpiece may turn, it doesn’t affect the result of the burnishing. These tools can be used on universal or CNC machines, machining centers, drilling machines or other turning machines. The tools are adjusted. For Ø6 - Ø80 mm tools, adjustment precision is 0,0025 mm and bigger than Ø80 mm tools adjustment precision is 0,0050 mm. There are two types of YAMASA DX type roller burnishing tools, for through holes and blind holes. For through holes, burnishing tools process the holes that have an open end. For blind holes, burnishing tools process stepped or fully closed holes up to deepest point. For through holes burnishing tools can be used automatically or machine feeding but for blind holes only machine feeding is suitable. The tool or the workpiece can be turned with speed of 100 m/min. Machine feeding speed is possible from 0,05 mm/rev. to 0,3 mm/rev. for per roller.

YAMASA DX type roller burnishing tools consist of a body and a rolling head. The tool body has a precious an adjustment mechanism. Cage, cone and rollers are the parts of the rolling head. The rolling heads fitting in to the same body can be changed. The tool shank may be Mors Taper or cylindrical. The tools bigger than Ø34 have unlimited rolling length, but smaller than Ø35 there are only standard rolling lengths exist (see table below). For special orders, longer rolling length tools can be produced.