The material of tap wrench set with metric tap: High quality bearing steel, durable and functional, a good tapping set with taps and drill bits. The ratchet wrench has an adjustable T-handle. This mechanic's tool can be operated with one hand and is more convenient to use. It fits multiple taps and is easy to use even in tight spaces. The handle can be slid to the other side for convenient positioning. This allows you to use it freely even in a tight space. This ratchet wrench with drill and tap is ideal for car repairs and machines where metric threads are specified. This tapping tool is a must for general purpose applications such as wood, soft metal, aluminium, acrylic panels, circuit boards, routine maintenance and repair work and for rethreading where high thread accuracy and tolerance is not a concern. Note: The data are all measured manually. Please allow an error of 1-3cm. Due to the difference between light and display, there is a certain color difference, which depends on the actual object received.