New Reaming Shanks Added to Seco’s Percimaster Plus

Seco 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.

seco_percimaster_plus_webThe new floating PMX-FL and adjustable PMX-AD shanks 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 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 five microns.

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

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.

About Seco Tools, LLC

Seco Tools, LLC is a leading provider of metalcutting solutions for milling, turning, holemaking and toolholding. The company prides itself on building close relationships with customers to effectively understand and address their needs. For more information on the company’s products and services, please contact Bob Heery, Seco Tools, LLC, 2805 Bellingham Drive, Troy, Michigan, Tel:248.528.5451, Email:, visit or follow the company on Twitter at @SecoToolsUS.