- Coolant Through: No
- Thread Size: #8-32
- Material: HSS-E
- Finish/Coating: Steam Oxide
- Number of Flutes: 3
- Flute Direction: Right Hand
- Class of Fit: H3
- Thread Limit: H3
- Chamfer Type: Semi-Bottoming
- Cutting Direction: Right Hand
- Material Application: Alloy Steel, Carbon Steel, Cast Iron, Die Steel, Hardened Steel and Stainless Steel
- Measurement System: Imperial
- Overall Length - Fractional: 2-1/8 in
- Series: 290
- Thread Standard: UNC
- Shank Diameter - Decimal: 0.168 in
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 2912801 | OSG Spiral Flute Tap | 3 Flutes | #8-32 | UNC Thread Standard | Semi-Bottoming Chamfer | HSS-E