PMX-FL and PMX-AD shanks

Seco Tools LLC, Troy, Mich., has further optimized the high-precision reaming performance of its modular Precimaster Plus™ indexable head system by adding floating and adjustable shank designs to the mix, the company announced in a news release today.

The new floating PMX-FL and adjustable PMX-AD shanks are said to incorporate compact, highly accurate internal systems that eliminate the need for special toolholders to handle their respective functions. When compared with special toolholders, these shanks reportedly offer less tool overhang by situating the reamers closer to the machine spindle noses.

Developed for static applications, the PMX-FL shank has a mechanical built-in floating system that provides higher stability over tools with common rubber or elastomere-type technology. The PMX-AD shank for rotating applications has a mechanical internal adjustment feature that uses six screws to provide precise settings and effectively correct spindle runout down to less than 5µm.

Applicable to all workpiece materials, the PMX-FL and PMX-AD shanks come in four different sizes to accommodate hole diameters from 10mm to 60.5mm.

Overall, the Precimaster Plus System includes solid-carbide disposable cutting heads, a high-precision clamping connection and common holders to achieve IT7 tolerances in blind and through-hole applications.