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Seco expands Precimaster Plus™ system for high-precision reaming
10/12/2015 8:30:00 AM

Fagersta, October 2015 – Seco has expanded its Precimaster Plus high-precision, indexable-head reaming system to include new shanks featuring built-in floating and adjustability. These new options further strengthen the system’s potential benefits by improving hole surface finishes, eliminating runout and correcting for misalignment without the use of special toolholders.

The new PMX-FL and PMX-AD shanks use compact internal systems to providing floating and adjustability. This minimises overhang by allowing the reamers to be positioned closer to the machine spindle noses when compared to the traditional special toolholders required for these functionalities.

The unique built-in floating system applies to both static and turning-machine reaming applications and is purely mechanical, resulting in higher stability than the rubber or elastomere-type technology found in other toolholders on the market that are intended to provide similar performance. Additionally, the internal adjustment on the PMX-AD for rotating applications is mechanical and uses six screws to provide precise settings, correcting for spindle runout of less than 0.005 mm.

Precimaster Plus is Seco’s high precision modular reaming system that maintains high accuracy and reliability while providing economical performance. The system’s diverse range of shanks and heads provides the flexibility needed to optimise a wide variety of reaming applications.

The new PMX-FL and PMX-AD shanks are available in diameters ranging from 10 – 60.5 mm. For more information, please contact a local Seco representative or visit  


Headquartered in Fagersta, Sweden and present in more than 75 countries, Seco Tools is a leading global provider of metal cutting solutions for milling, turning, holemaking and toolholding. For more than 80 years, the company has provided the technologies, processes and support that manufacturers depend on for maximum productivity and profitability. For more information on how Seco’s innovative products and expert services bring success to manufacturers across all industry segments, please visit