SwissTech: M3X0.5 Purple Sp/Fl 371 H SS-PM Nit Tap Right Hand Cutting - Left Hand Spiral Flute HSS-PM Nitride Finish. For through holes. Left hand spiral. Taper lead to DIN form D (3.5 x P to 5 x P). Tapping tolerance to 6HX. ISO Metric Coarse Helix angle 15. MPN: 5036140209183 EAN: 5036140209183 M3X0.5 Purple Sp/Fl 371 H SS-PM Nit Tap Attributes: Class of Fit: 6HX Coolant Delivery: External Dimensions Standard: DIN 371 Finish/Coating: Nitride Helix Angle: 15° Material: Powdered Metal High Speed Steel Material Application: Titanium Alloys Nickel Material Grade: HSS-PM Number of Flutes: 3 Overall Length: 56.0mm Pitch: 0.5 Ring Colour: Purple Shank Diameter: 3.50mm Square Width: 2.70mm Tap Type: Spiral Flute Thread Direction: Right Hand Thread Length: 11.00mm Thread Size: M3 Thread Standard: Metric Coarse