EMUGE-FRANKEN USA Expands Line of SELF-LOCK Threading Tools for Safety Critical Applications

May 5, 2022 5:06 pm

New Thread Mills and Thread Gages Broaden the EMUGE SELF-LOCK Line.

WEST BOYLSTON, MA – Today, EMUGE-FRANKEN USA, a leading manufacturer of high-performance taps, thread mills, end mills, drills, and other rotary tools, has announced it has expanded its line of SELF-LOCK thread locking tools to include new EMUGE ZGF-S-Cut Thread Mills, in addition to EMUGE High Ramp Precision Thread Gages designed for gaging EMUGE SELF-LOCK thread profiles.

The new ZGF-S-Cut SELF-LOCK Thread Mills with helical flutes, multiple teeth and TIALN-T46 coating produce self-locking threads that are ideal in demanding industry applications such as aerospace where nickel alloys, titanium and stainless steel are the norm. A unique design enables three tooth pitches to simultaneously rough and finish-cut threads, dramatically increasing tool life and reducing cycle times.

Expanded EMUGE SELF-LOCK Line includes EMUGE ZGF-S-Cut Thread Mills (middle and right) and High Ramp Precision Thread Gages (left inset)

“As the demand for self-locking threads for safety critical applications increases, our new ZGF-S-Cut SELF-LOCK thread milling products with unique geometry provide more threading options,” said Marlon Blandon, Thread Milling Product Manager, EMUGE-FRANKEN USA. “Interest in our SELF-LOCK threading tools, which have been successfully applied for years, continues to rise.”

The new EMUGE ZGF-S-Cut self-locking thread mills have a left-hand helix flute design with left-hand spindle rotation, which greatly enhances stability and cutting performance. The first of three cutting teeth acts as a rougher, while the second and third teeth finish the full thread profile, providing perfect threads, exceptional cycle time reductions and longer tool life. TIALN-T46 coating resists heat and wear and further extends tool life. “Our ZGF-S-Cut design provides tool life which can exceed 10 times that of conventional thread mills,” said Blandon. The new thread mills are available in 16 sizes from 2-56 up to ½-20″ for UNC or UNF threads, and tools starting at the ¼” size and larger feature axial coolant capability.

New EMUGE High Ramp Precision NO-GO Thread Plug Gages have also been added to the EMUGE SELF-LOCK line. The gages are used to check the lower thread ramp point for possible ramp angle errors and are used along with standard EMUGE SELF-LOCK Thread Plug Gages to verify all thread profile features.

The special profile of EMUGE SELF-LOCK threads allows an even distribution of stress over the entire thread length, eliminating slippage. Compared with standard threads, EMUGE SELF-LOCK internal threads show constant, maximum holding power under dynamic stress. Functions remain in good operation even with repeated loosening and re-tightening of the thread connection. The locking effect is caused by the ramp-shaped surface integrated into the thread profile. EMUGE SELF-LOCK technology results in increased threading tool life for larger thread hole diameters and provides larger tolerances for thread hole diameters.

Other EMUGE SELF-LOCK products include UNC and UNF Cut Taps, UNC and UNF Form Taps; Metric Cut Taps, Metric Form Taps and Metric Thread Mills, in addition to GO/ NO-GO Thread Gages. To see the full range of EMUGE SELF-LOCK threading tools, visit https://www.emuge.com/products/taps/self-lock-taps.



For over 100 years, the German company group EMUGE-FRANKEN has been one of the world’s leading manufacturers of precision tools for thread cutting, gaging, clamping, and milling. With 1,950 employees, EMUGE-FRANKEN offers an innovative product program with 40,000 in-stock items and a multiple of that with customer-specific tools. The product range focuses on applications in the automotive industry, power plants, aerospace industry and medical technology as well as general manufacturing. As a complete system supplier for the machining industry, EMUGE-FRANKEN has branch offices or sales partners in 52 countries.

EMUGE-FRANKEN USA is a wholly-owned subsidiary of the 1,950 employee German company EMUGE-Werk Richard Glimpel GmbH & Co. KG (Lauf, Germany). EMUGE-FRANKEN USA offers end-user technical support through a network of in-the-field engineers and in-house product specialists, all with extensive tooling and application experience. Over 10,000 types of cutting tools and accessories are stocked in the company’s U.S. and Canadian Headquarters located in West Boylston, MA, U.S.A. The recently expanded 50,000+ sq. ft. facility includes a technology center with a machining and tooling demonstration showroom and classroom, tool manufacturing and coating, reconditioning, warehouse, sales, support, and administrative offices.

For more information on EMUGE-FRANKEN USA, call 800-323-3013, at 1800 Century Drive, West Boylston, MA 01583-2121, or visit (www.emuge.com).

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