According to Guhring, taps are efficient for the production of threading up to 1/4”; however threadmills are a good choice for large diameter threading. “If you are producing a wide variety of parts, threads ormaterials on the same machine, or if you have problems with difficult or hardened materials, extremely tight pitch diameters or dimensional tolerances, threadmills are a versatile solution that can save both time and money, ” said a Guhring spokesperson. Thread mills will produce right or left hand, with single or multiple lead. In addition, thread mills can produce full threads towithin one pitch of the bottom of the drilled hole. They also eliminate broken taps in holes. Material applications range from soft, non-ferrous alloys to heat-treated steels, or tough aerospace alloys such as titanium and Inconel. In addition to standard thread forms, pipe threads are easily producedwith thread mills and without leaving the normal “stop lines.” Guhring’s selection of thread mills includes depth ranges of 1xD, 1.5xD and 2xD. They also come with and without countersink geometry. Guhring has a full range of DTMC drill/thread combination tools as well. This allows machinists to drill and chamfer the hole with one tool in one pass. Guhring’s offering starts at #10-32 with UNC/UNF threads along with Metric and Metric Fine thread forms as standards. In addition, Guhring offers both NPT and NPTF thread forms in solid and coolant-fed designs. “To compliment our high quality coatings, we use only premium, ultra fine grain, K40 grade carbide for optimumtool life with repeatable performance. Guhring thread mills are manufactured from Guhring carbide rod, produced in our facility in Berlin, Germany, specifically for the demands of high performance milling. We offer over 450 different stocked standard sizes and styles for a large variety of options,” said the spokesperson. For more information contact: Guhring Incorporated 1505 Commerce Avenue Brookfield, WI 53045 800-776-6730 www.guhring.com