Woodruff Key Half Moon Assortment Kit 150 Pcs in 15 Sizes Carbon Steel Semicircle Keys for Fasteners and Mechanical Projects Pro Grade Crankshaft Compatible Hardware Set with Storage Box Metric Woodruff Keys for DIY and Professional Use

150-Piece Woodruff Key Half Moon Set for Engines
✔️ 150 pcs, 15 sizes, carbon steel, stored in a clear box

Woodruff keys are semi-circular discs that fit into a keyway on shafts and hubs, used to securely join rotating parts in machines, engines and other mechanical assemblies. This set is ideal for DIY projects and professional machining, offering ready-to-use sizes in a compact storage box.

✅ 150 pieces total in 15 sizes
✅ Carbon steel, high hardness and corrosion resistance
✅ Each key precision-cut for accurate fit
✅ Stored in a clear box, neatly organized by size
✅ Suitable for crankshafts, flywheels, hubs and fasteners

💡 What is a woodruff half moon key used for in mechanical shafts and engines?

This handy part locks rotating parts to shafts and hubs for secure torque transfer. - Secure fit between shaft and hub for reliable torque transmission - Commonly used in crankshafts, flywheels, and hubs in small engines - Carbon steel construction provides hardness and wear resistance - Pack includes 150 pieces in 15 sizes, stored in a clear box