High quality: High quality bearing steel, durable and functional, a good tap set with taps and bits. Tapping set: The ratchet tap holder length is 85mm / 3.35 inch, the sizes of the T-handle tap set are 3mm 4mm 5mm 6mm 8mm, different sizes have different uses. p> Removable assisted pole: The T-Handle Adjustable Ratchet Screwdriver can be moved from side to side for a more comfortable position, even in the tightest of spaces, you can use it unhindered. T-shaped tap: Tap slide handle tool holder can be operated with one hand, T-shaped design is easy to grip and use, smooth coating surface, comfortable to hold, and can be easily handled from one hand. Wide use: This tapping tool is a must for general applications such as wood, soft metals, aluminum, acrylic plates, printed circuit boards, for routine maintenance and repair work and for subsequent tapping of threads for which high accuracy and tolerance of the thread is not important. Note: The data are all manual measurement, please allow 1 - 3cm error, due to the light difference and display, there will be a certain color difference, depending on the physical object received.