WIDIA™ GTD™ TRU-LEDE™ 2500 Form D Machine Screw Forming Tap, Imperial, #4-40, UNC Thread, 4 Flutes, Plug
WIDIA™ GTD™ Forming Tap, Form D Machine Screw, Series: TRU-LEDE™ 2500, Measurement System Imperial, #4-40, UNC, Plug Chamfer, 0.31 in Thread Length, 1.88 in Overall Length, 4 Flutes, Right Hand Cutting, 0.141 in Shank Dia, HSS, TiN Coated
- Necked design in sizes #4 through 3/8 in improves coolant flow when threading deep blind holes
- Forming taps displace metal, comparable to external thread rolling, conventional cutting taps remove metal as chips that can clog the threaded hole
- Improved lobe groove design on machine screw sizes #5 and larger improves threading efficiency in blind hole applications
- Tapping speeds can be almost doubled above conventional cutting taps, improving efficiency of the forming action
- Applicable on steel, stainless steel, gray cast iron, ductile cast iron, wrought aluminum, cast aluminum, copper and copper alloys
- Flood coolant
- 1/4 in neck length
- 0.56 in flute length
- 3.5 to 5 pitch
- H3 thread limit