Check the listing for details. Spiral Flute Thread Tap 2-56 UNC Machine Taps HSS6542 Nitrided Coated. Condition: New. Listed at 15.15 USD. Specifications:Thread Size: 2-56 UNCTolerance: 2BThread Length: 10mm / 0.39"Square End Size: 2.4mm / 0.09"Round Shank Dia.: 5mm / 0.20"Total Length: 44mm / 1.73"Material: M2 High-Speed Steel (HSS6542)Finish: Nitrided CoatedCutting Direction: Right HandPackage Included: 1 x Spiral Flute Thread TapsDescriptions:The spiral flute design ensures smooth chip evacuation, prevents breakage, and enables more efficient tapping. The spiral tip of the tap helps guide it into the hole, reducing the torque required to turn it, and the flutes easily remove chips and debris from the hole and machine.Spiral flute thread taps are suitable for machining blind or deep holes and sticky materials, and can be used for tapping stainless steel, aluminum, cast iron, alloy steel, ordinary steel, non-ferrous metals, hard plastics, etc.