UNIFIED NATIONAL COARSE TAP SETS | UNC BORDO

UNC | UNIFIED NATIONAL COARSE TAP SET

About this item:

• Chrome Alloy UNC Hand Tap Sets designed for threading applications.
• Ideal for use as thread chasers to clean existing threads or to create new female threads in non-ferrous metals and plastics.
• Not intended for precision, safety-critical, or high-tolerance thread creation.
• The Unified National Coarse (UNC) thread form, introduced in 1948, standardizes thread profiles across the USA, Canada, and the UK, conforming to the JIS B0206 standard.
• Thread specifications are defined by major diameter and threads per inch (TPI), widely used in mass production of bolts, screws, and nuts.
• Designed for threading into lower tensile strength materials such as bronze, brass, aluminium, and plastics, providing excellent resistance to internal thread stripping.
• Well-suited for quick assembly or disassembly, especially where corrosion or minor damage might occur.
• Includes three tap types for comprehensive threading needs:
  • Bottoming Taps: With a lead of two threads, these ensure minimal thread run-out when tapping to the bottom of blind holes.
  • Taper Taps: Featuring a lead of eight threads, they serve as starting taps for difficult or high-precision holes.
  • Intermediate Taps: With a lead of four threads, these are used for general-purpose threading, cutting true threads in pre-drilled pilot holes.

These tap sets offer reliable performance for a variety of threading tasks, combining durability with ease of use. Crafted from chrome alloy, they provide a balance of strength and corrosion resistance suitable for many workshop and industrial applications.