Walter (Waukesha, WI) has expanded its popular TC117/TC217 Advance tap product line with an expanded range of tolerances, enabling these taps to be employed in even more applications.
Like the rest of the product line, these new, oversized blind and thru hole taps – H7 (+.003”) UNC#6-UNC5/16”, UNF#6-UNF5/16”, and H11 (+.005”) UNC1/4–UNC¾”, UNF1/4 –UNF¾” – deliver high threading productivity in a wide range of different materials. The versatile TC117 (blind-hole) and TC217 (thru-hole) taps tackle material ranging from steel and stainless to cast iron and non-ferrous materials (ISO material groups P, M, K and N), and materials with hardness up to 40 Rc (370 HB). This versatility can help save on inventory costs by reducing the number of taps needed.
The TC117 blind-hole tap has a 40-degree helix angle and up to 2.5 x DN with chamfer form C (semi bottoming) or E (full bottoming). The TC217 through-hole tap features a spiral point for forward chip evacuation and a thread depth capability of 3.0 × DN. Both taps use HSS-E substrate that provides excellent durability due to its cobalt enrichment. The taps feature grade WY80RG for good chip control, good wear resistance and higher cutting speeds and WY80FC, which offers less wear resistance and cutting speed but offers much better chip control for stringy and difficult-to-control chips such as stainless steel. All are offered with DIN length/ANSI Shank (DIN/ANSI standard).
Walter product technology is available in three designations: Perform, Advance and Supreme. The Perform tools provide an economical solution with focused importance on lower batch production and price. The Advance tools are efficiently balanced between price and performance. The Supreme designation indicates the highest level of technology and performance available for high productivity, high production volumes environment.
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