Preferably high hardness and high carbon steel materials, surface polishing/heat treatment and high temperature quenching, long service life. The external hexagonal magic wrench, fully adjustable with a one-handed squeeze. with a light grip, can easily match the needs of various types of pipes and bolts. The card slot is stable and convenient to use. Easily disassemble the bite, and work disassembly is convenient. The mechanically enhanced grip multiplies your gripping power. TPP non-slip handle, non-slip and effortless when in use, durable.Won't round, slip, or scar work surfaces – great for softer materials, such as plastic, copper, and aluminum. Widely used in plumbing maintenance, mechanical maintenance, automobile maintenance, non-motor vehicle maintenance, electrician maintenance, family emergency maintenance, etc.