1， Thread Tap: Thread Size: M11; Pitch: 2.0; Accuracy: H2; Overall Length: 165mm/6.5inch | 2， High-speed steel tap: the tap has high wear resistance, fast cutting speed, high strength and hardness, and long service life. For uncoated substrates only, for general purpose tapping or cleaning of existing threads | 3， Thread tap is suitable for drilling mild steel, aluminum, iron, copper, stainless steel, hard plastic | 4， Recommended feed speed: ordinary steel: 6-15m/min; harder steel: 5-10m/min; stainless steel: 2-7m/min; cast iron: 8-10m/min