Spiral Tap (UNF) SKH NO.6-40 ST-UNFNO.6 1 piece

Unified thread. Suitable for tapping machines. Used for blind holes, the cutting chips curl upwards. IS spiral taps have a unique design for the helix angle, groove shape, and chamfer angle, making the cutting torque particularly light (about half that of a hand tap). Furthermore, the threads are homogenized for increased wear resistance, making them extremely durable. Fine thread. Material: SKH Square length (mm): 6 Drill diameter (mm): 2.9 Use: For blind holes Accuracy: H2 Total length (mm): 48 Shank diameter (mm): 4 Number of teeth: 40 Thread length (mm): 18 Shank square section (mm): 3.2