The material of the metric tap wrench set: high quality bearing steel, durable and functional, a good tap set with taps and drill bits. The ratchet wrench has a T-handle adjustable. This mechanical tool can be operated with one hand and is more convenient to use. Fits multiple faucets 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 confined space. This ratchet wrench with drill and tap is ideal for automotive and machine repairs where metric threads are specified. This threading tool is essential for general purpose applications such as wood, soft metals, aluminum, acrylic panels, circuit boards, routine maintenance and repair work, and rethreading where high thread precision and tolerance are no problem.