1PCS M10 threaded handle handle crank handwheel with nut, 1 handle and 1 nut, trailer jack handle made of high-quality electric wood material, sturdy and practical, beautiful appearance, smooth surface, excellent workmanship, not easy to wear and tear, long service life, screws using galvanizing process, stainless steel process, evenly galvanized and not easy to rust. The conical design of the handwheel accessory makes it slip resistant, scratch resistant, and more comfortable to use. Ergonomic design, easy to adjust and tighten, with maximum control and flexibility. When using a handle without fixed nuts, there is no need to worry about loosening during operation. The rotary handle can be used for lathes, tailstock, vise handles, rocker drilling machines, drilling platforms, crankshafts, surface rotary grinders, cylindrical grinders, shaping, boring, contour cutting, and automatic plastic cutting. Through polishing and deburring processes, it ensures a comfortable grip and reduces the risk of catching a cold. Trailer crank handle can be used in hardware industries such as building construction, furniture maintenance, lathes, fixtures, fences, mechanical equipment, instruments, industrial equipment, etc. It is also suitable for printing, woodworking, machinery, food, packaging equipment, and hardware tools.