Irwin Hanson 333322 1/2-13 UNC HSS Ground Thread Spiral Point Tap 3-Piece Set

The Irwin Hanson 333322 is a professional-grade 3-piece spiral point tap set designed for threading 1/2-13 UNC (Unified National Coarse) holes. Manufactured from high-speed steel (HSS) with precision ground threads, these taps deliver accurate, clean threads in a variety of materials.

Key Features:

• 1/2-13 UNC thread specification for standard coarse threading applications
• High-speed steel construction offers excellent hardness and durability
• Ground thread design ensures precision tolerances to .0005" pitch diameter
• Spiral point geometry directs chips ahead of the tap, preventing clogging in through-hole applications
• 3-flute design provides efficient chip evacuation and reduced cutting torque
• Plug chamfer configuration suitable for both through-holes and blind holes
• H3 tolerance class for consistent, quality threads

Spiral point taps are ideal for through-hole threading in steel, aluminum, brass, and other metals. The spiral point design pushes chips forward rather than pulling them back through the flutes, making these taps faster and more efficient than standard taps. Suitable for use with drill presses, tapping machines, and CNC equipment when used with appropriate cutting fluid.