Widia GTD 85704 M5x0.8 D4 3FL HSS-E EMTI Spiral Point Gun Tap (6pc)
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This listing is for six (6) new Widia GTD 85704 spiral point (gun) taps in M5x0.8 metric coarse thread, manufactured in Japan. Each tap is ground to D4 tolerance class (H4 pitch diameter limit), features 3 flutes, and carries the EMTI designation indicating an oxide (steam-tempered black oxide) surface treatment on an HSS-E (cobalt-enriched high-speed steel) substrate. The spiral point geometry pushes chips ahead of the tap into the through-hole, making these taps suited for through-hole tapping in CNC machining centers, drill-tap centers, and automatic screw machines running steels, stainless, and aluminum. The black oxide finish improves lubricity and corrosion resistance during storage and cutting; the HSS-E base provides elevated heat and wear resistance compared to standard M2 HSS.
Product Specifications
| Brand | Widia GTD |
| MPN | 85704 |
| Series | 8951 |
| Thread Size | M5x0.8 |
| Thread Standard | Metric Coarse (ISO) |
| Tap Type | Spiral Point (Gun Tap) |
| Number of Flutes | 3 |
| Pitch Diameter Limit | D4 (H4) |
| Material | HSS-E (Cobalt High-Speed Steel) |
| Coating / Finish | Black Oxide (Steam Tempered) |
| Country of Origin | Japan |
| Quantity | 6 pcs |
| Application | Through-hole tapping |
| Condition | New |