• 5318 Victory Drive
    Indianapolis, IN 46203
  • (800) 622-4824
  • www.haggard-stocking.com

1/2-13 Tap, Modified Bottom, UNC thread, H7, 3 flutes, HSS-E-PM, TiN Coated, 40° Spiral Flute

  • Item Code: 3980-12.700
  • Brand: Guhring
  • Unit Size: 1

Description

Oversized taps are taps that are typically +0.003''/+0.005'' larger than the standard pitch diameter. An H7 thread limit tap is +0.003'' oversize from the basic pitch diameter while the H11 tap is +0.005'' oversize. Oversize taps are typically used for threading holes that will be subsequently plated or heat treated after tapping. Guhring offers TiN coated plug and bottoming style oversize taps as stocked standards.

Tech Specs

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chamfer (decimal) Modified Bottom
Helix Angle 40°
Brand Guhring
H Limit H7
threadtype UNC
Diameter 1/2-13
Square Size (decimal) 0.2752
Diameter (mm) 12.7
Material HSS-E-PM
Overall Length (mm) 85.9003
Coating TiN
Series 3980
Shank Diameter (mm) 9.3218
Overall Length (decimal) 3.3819
Number of flutes 3