Irwin Hanson Flute Tap, SAE/Metric: SAE, Thread Type: UNF, Thread Size: #10-32, Thread Length: 1-1/2 in, Thread Direction: Right Hand, Chamfer Type: Bottom, Number of Flutes: 4, Flute Length: 1-1/2 in, Shank Type: Straight, Shank Diameter: 1/4 in, Shank Length: 1/4 in, HCS, Bright, 3 in OAL, Applicable Materials: Abrasive Materials, Non-Ferrous Materials, Plastics, Wood