T20 Hand Crank Screw Set Key benefits Simple, reliable manual linear motion: control position and feed with a durable handcrank mechanism. Durable construction: lead screw, nut and base made from 45# steel with a black surface finish for strength and wear resistance. Compact, easy to operate: foldable aluminum alloy handwheel (100 mm diameter) saves space when not in use and provides comfortable grip and torque. Versatile lengths and easy replacement: available in multiple standard lengths to fit a range of machines and fixtures. What it does and why you need it Provides a robust manual actuation solution for precise positioning, clamping, or feed adjustment where powered actuation is not required or practical. Ideal for maintenance, retrofits, or as a direct replacement for existing T20 style handcrank assemblies. Improves control over adjustments compared with improvised handles or less rigid linkages. Specifications (consistent with original model) Product name: T20 hand crank screw set Available lengths: 220 mm, 250 mm, 280 mm, 300 mm, 350 mm, 400 mm, 500 mm, 550 mm, 600 mm Material: lead screw, nut and base are 45# steel, surface black Handwheel: foldable aluminum alloy, diameter 100 mm Performance and compatibility Suited for machines and fixtures that accept T20 style screw sets or require a leadscrewbased manual actuator. Compact foldable handwheel reduces obstruction and improves safety in cramped assemblies. Steel construction provides stable, repeatable motion for frequent manual adjustments. Typical use scenarios Machine tool accessory: manual feed or fine adjustment on drills, mills, or small lathes during setup and maintenance. Fixture and jig positioning: precise clamping and incremental positioning in welding, assembly, or inspection fixtures. Packaging and lab equipment: manual control of gates, stops, or small conveyors where reliable hand operation is needed. Ordering and selection tips Choose the length that matches the required travel or replacement dimension for your application. Confirm mounting and thread compatibility with your existing T20 interface prior to ordering.