Specifications:Thread Size: 1/4-20 UNCThread Length: 23mm / 0.91"Total Length: 68mm / 2.68"Square End Size: 4.5mm x 4.5mm / 0.18" x 0.18"Thread Tolerance Grade: H2Material: HSS (High Speed Steel)Finish: UncoatedCutting Direction: Right HandNumbers of Flutes: 3 FlutesPackage Content: 1 x Spiral Point Threading TapDescriptions:1. Spiral point taps features right hand thread cutting, clear threads, fast tapping with accuracy. Straight flutes provide downward chip removal.2. High speed steel tool is with high hardness and toughness, heat resistance and wear resistance. Features the base substrate without any coatings. Suitable for general purpose thread tapping.3. Great for through-hole threads. Can be used for drilling and tapping stainless steel (below 30HRC), aluminum, die steel, ordinary steel, non-ferrous metals, hard plastics, etc..4.
eBay