[Tap and Die Set Size]: Specification: M20, Tap Flute Length: 31.5 mm / 1.24 inch, Tap Length: 83 mm / 3.27 inch, Die Outer Diameter: 45 mm / 1.77 inch, Die Thickness: 17.5 mm / 0.69 inch.

[Two Tap & Die Set]: Chamfer holes at 30° before tapping to eliminate sharp edges and prevent tap tooth chipping. Secure the taper tap in the tap wrench and align it vertically with the hole. Rotate clockwise evenly and reverse half a turn every 1-2 rotations to clear metal chips while applying cutting oil continuously for lubrication and cooling. For threading rods attach the die tightly to the chamfered rod end, maintain perfect coaxial alignment, feed clockwise slowly, reverse occasionally to clear chips and keep lubricating all the time.

[Broad Application]: Suitable for threading cast iron copper brass steel alloy and various other metals. It is widely used in home appliance maintenance automobile repair plumbing installation hardware DIY and thread rework for small components.

[Reliable and Durable]: Crafted from polished 9SiCr alloy tool steel, this manual threading kit delivers high hardness, great toughness and corrosion resistance. It includes taper taps, plug taps and matching round dies for hand operation only. The taper tap features an extended guide with gradual teeth for smooth entry and precise alignment. The plug tap with full threads trims burrs and finishes threads after initial tapping to ensure easy nut installation. All pieces fit standard tap wrenches and die stocks.

[Package Inclusions]: 2 Pcs Threading Tap, 1 Pcs Round Die.