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Widia’s high-performance WIDIA-GTD HSS-E taps are designed for increased precision and productivity in thread-making applications. The grade, geometries and coatings of the powder-metal taps are said to precisely tap steel and stainless steel materials. The proprietary powder-metal substrate contains higher-than-standard levels of cobalt content for a combination of heat resistance and increased tool life, the company says.
Choices include a 15-degree left-hand helix for pushing chips ahead during through-hole tapping and a 45-degree right-hand helix for retracting chips from blind holes. Manufactured to both ANSI and DIN standards, the precision h6 shanks enable the taps to be suited for conventional tap holders with square drive or precision round toolholders.
Grades are available for general engineering and vehicle manufacturing applications such as crank and cam shafts, connecting rods and wheel hubs. Options are also available for precision aerospace applications such as valves, fittings and fasteners in stainless steels.