OSG 2931201, 3 Flute, 5/16 in, Vanadium HSS, Spiral Flute Tap

OSG 2931201
$37.65 / EA
  • Coolant Through: No
  • Thread Size: 5/16-24
  • Material: HSSE
  • Finish/Coating: Steam Oxide
  • Number of Flutes: 3
  • Thread Limit: H3
  • Chamfer Type: 2.5P-3P Modified Bottoming
  • Cutting Direction: Right Hand
  • Finish: Steam Oxide
  • Flute Type: Spiral
  • Material Application: Alloy Steel, Cast Iron, Die Steel, Hardened Steel, Low/Medium/High Carbon Steel and Stainless Steel
  • Measurement System: Imperial
  • Overall Length: 2.718 in
  • Overall Length - Decimal: 2.72 mm
  • Series: 290
  • Shank Diameter - Decimal: 0.317 in
  • Shank Length - Fractional: 1-19/32 in
  • Size: 5/16
  • Thread Length: 0.444 in
  • Thread Standard: UNF

OSG list 290 Hypro Spiral Fluted Tap is designed for tapping hardened steel such as 4140, 4340, H-13, D-2 and 1055 up to HRC 35 as well as a variety of stainless steel. OSG's unique geometry along with our premium vanadium material provide exceptional tool life with unequaled consistency. The wide range of H limits reduce the need for ordering special taps.

  • Modified Bottom Style (2.5P-3P)
  • 45 Degree Helix

OSG 2931201 | OSG Spiral Flute Tap | 3 Flutes | 5/16 in Tap | UNF Thread Standard | Semi-Bottoming Chamfer | Vanadium HSS

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