TaeguTec In the Groove With Small-Diameter Machining Line

1 July 2025

As a global leader in cutting tool technology, TaeguTec has announced a significant expansion of its innovative WINIGROOVE product line. Designed specifically for small-diameter internal machining applications, the expanded range now includes internal turning, profiling, and threading applications, complementing the original grooving functionality. This presents a comprehensive ‘all-rounder’ for the complete machining needs of the small parts manufacturing industry.

The WINIGROOVE miniature insert line is ideal for small-hole internal operations in the 6 to 8 mm diameter range. The ability of this miniature offering to access small diameters is enabled by the unique shape and inclined clamping system of the WINIGROOVE. The product line features toolholders designed with internal coolant channels that facilitate pinpoint precision coolant flow. Tool life, performance, and optimal chip evacuation are significantly enhanced by directing coolant straight to the cutting edge. This swarf removal is crucial when working with small internal diameters, as insufficient chip evacuation can rapidly diminish tool life and performance.
The expanded product line includes several new insert types.

The TMIR/L series remains the foundation for internal grooving operations, while the new TMIR/L-T inserts have been designed specifically for internal turning applications on small diameters. For precision internal profiling, TaeguTec introduces the TMIR/L (Full-Radius) inserts, and the TMIR/L-MT inserts provide precise solutions for internal 60° threading on small diameters.

The TMIHR/L and TMIHR/L-C boring bar tools complement these insert ranges. The TMIHR/L internal boring bars feature coolant channels for precision fluid distribution. Available in different size configurations, the round shank TMIHR/L includes the 12-12-6 designation with 12mm diameter shank and 12mm effective cutting length with a minor diameter of 6mm, as well as a 12-12-8 designation for machining inside 8mm diameter bores. The enhanced TMIHR/L-C series is a necked carbide boring bar for additional stability, with coolant holes on small diameters providing additional rigidity for demanding applications.

The TMIR/L-MT threading inserts offer pitch options ranging from 0.2 to 0.75mm to 1.5 to 1.75mm, with precise dimensional parameters on the thread pitch TP, point diameter PDX, and insert nose radius. Similarly, the full-radius profiling inserts provide feed rates between 0.02 to 0.05mm/rev, with carefully calibrated cutting widths and radii for optimal surface finishes.
The comprehensive range now enables manufacturers to perform various internal machining operations with a single tooling system. With the ability to undertake grooving, turning, profiling, and threading using just one tool, manufacturers can significantly reduce tooling changeovers, inventory management, and associated costs. By replacing a multitude of solid carbide tools with this flexible approach, manufacturers also adopt an economical solution that reduces carbide consumption and the associated environmental impact.

This expansion showcases TaeguTec's WINIGROOVE product offering as a ‘complete system’ for internal small diameter machining. Manufacturers working with miniature components in sectors such as medical, aerospace, electronics, and precision engineering will benefit from having a unified tooling solution that ensures consistent quality across different internal machining operations.