#4-40 Bottoming RH 2B/3B H2 Bright High Speed Steel 3-Flute Straight Flute Hand Tap MPN:10078-00-B

The bottoming tap is commonly used in machining processes to create threads with precise depths while maintaining accurate tolerances using hand tools. The high speed steel construction of the straight flute design delivers greater wear resistance compared to standard carbon steel versions, which allows professional toolmakers or machinists to produce more precise workpieces over longer period before sharpening is required. Typical customers range from automotive and aerospace firms, precision component manufacturers to contract shops that handle numerous projects requiring accurate threading operations with various materials such as aluminum or steel parts at medium thread depths using manual tap-handling methods.