Key benefits Versatile solution for mechanical and industrial use: works as a thumb knob, machine tightening knob, locking star knob, clamping star knob, grip screw knob, hand screw knob, handle grip, or disassembly handle knob. Precise, easy control: the adjustable mechanical handle gives fine adjustment and firm leverage so you can tighten or position parts without slipping. Secure, reliable fastening: designed to prevent loosening under load, maintaining stability in machines and fixtures. What it does and why you need it Provides a single, adaptable fastener for tightening, clamping, and repositioning tasks across a wide range of equipment. Reduces setup time and simplifies adjustments by combining a comfortable grip with an adjustable handle for accurate control. Ideal for both professional shops and DIY toolkits—one part replaces multiple specialized knobs or handles. Key attributes Function: thumb/hand screw knob for tightening, clamping, locking, and disassembly tasks. Compatibility: suitable for a variety of mechanical and industrial applications; also usable as an umbrella base screw replacement. Operation: adjustable mechanical handle for precise control and strong torque transmission. Performance: secure tightening that resists loosening and maintains stability under repeated use. Typical use scenarios Machine setup: quickly secure fixtures, jigs, or guards on milling machines, drill presses, or other tooling where frequent adjustments are required. Clamping and assembly: use for clamping workpieces, tightening adjustable stops, or locking assemblies in place during assembly or repair. Replacement and repair: swap in as a grip screw knob or umbrella base screw replacement when original knobs are worn or missing. Who it’s for Machine operators, maintenance technicians, and fabricators who need dependable, repeatable tightening and clamping. DIY enthusiasts and home workshop users seeking a multi-function knob that reduces the number of spare parts required. Practical notes Simple to install and operate: the adjustable handle allows you to get the right torque and angle without disassembling surrounding components. Durable performance for repeated tightening cycles and typical industrial environments. Use this knob when you need a compact, adaptable, and secure tightening solution that replaces multiple types of handles and knobs across mechanical and industrial applications.