Guhring 04405-304.826 10-32 UNF H3 HSS-E Spiral Point Machine Tap (2 Pcs)

This is a factory-new matched pair of Guhring Powertap Series 4405 spiral point (gun) machine taps, catalog number 04405-304.826, in 10-32 UNF thread form with H3 pitch diameter tolerance class. Constructed from HSS-E (cobalt-alloyed M35-equivalent high speed steel), these taps feature a black oxide + steam-tempered surface treatment with the signature gold ring color-coding for size identification, as clearly visible in the product photos; HSS-E provides significantly improved heat resistance and wear life over standard M2 HSS, making the taps well-suited for stainless steel, alloy steels, and tough aerospace-grade materials. The spiral point (gun tap) geometry pushes chips forward ahead of the cutting zone, making this design exclusively suited for through-hole tapping in CNC machining centers, tapping heads, and rigid CNC lathes. WN 3/4 on the label refers to the DIN 374 standard (tolerance field), and the Guhring internal reference 14473408 confirms this as a production catalog item made in Germany. These taps accept standard tap collets and tapping chucks sized for the #10 shank diameter appropriate to this size range.

Product Specifications