Ingenious Design: Straight groove metric hand taps, easier to process and process internal thread tools. Application: Very suitable for internal thread tapping of automobiles, motorcycles and machinery. Good Practicability: fine-toothed taps for initial tapping and coarse-toothed taps for reinforcement tapping. Material: Made of impact-resistant and heat-treated carbon steel for maximum strength and hardness. Straight Flute Tap: Grinding straight flutes with 4 flutes, which can quickly remove chips downwards to achieve efficient thread processing, with clear and burr threads, right-hand tapping direction., Weight: 0.5291094288 Pounds, Manufacturer: YWBL-WH