HSS Tap UNC Intermediate-5/16x18

• Alpha HSS Hand Taps are precision manufactured in Europe to ISO529 standards.
• HSS Hand Taps are general purpose taps suitable for hand and machine operation, and are suitable for production use.
• 2N Tolerance for optimum thread fit that balances fastener performance, manufacturing, economy and convenience.
• Suitable for use in Steel, Aluminium, Copper, Brass etc.

INTERMEDIATE taps have a lead of four threads and are used in most general purpose applications. Alpha Intermediate taps can be identified by the two rings on the shaft near the driving square.

• Diameter: 5/16mm
• Pitch: 18mm
• Overall length: 53mm
• Shaft Diameter: 6mm
• Drive Square: 4.9mm
• Tapping Drill Size: 6.60mm