Versatile Pulley Keyway And Drive Shaft Key Set With 140 Pieces In Sizes From 3mm To 12mm For Flywheels Parallel Square Keys Key Stock And Fasteners In Mechanical Projects DIY Repairs And Industrial Machinery Maintenance

All-in-One Pulley Key Set, 140 Pieces, 3-12 mm
✔️ 140-piece set in 3-12 mm sizes, organized in sturdy plastic box

Essential for mechanical projects, this pulley key set covers 3-12 mm sizes and comes in a sturdy plastic storage box for easy field use and workshop maintenance.

✅ 140-piece set across sizes: 3x3x8 to 6x6x30 mm
✅ 10 pcs each in 12 sizes and 5 pcs each in 4 larger sizes
✅ Carbon steel with burr-free finish and corrosion resistance
✅ Plastic storage box for organized transport and quick access
✅ Round-ended keys fit mating keyways to transfer torque on shafts

💡 What is a pulley key set used for and why should I buy a metal key kit?

A handy kit for securing gears, pulleys, and drive shafts in mechanical assemblies. - High-strength carbon steel construction for durability and corrosion resistance - Precise sizes from 3x3x8 to 6x6x30 mm cover common shaft keyways - Includes organized plastic storage box for field use and workshop setups - Improves torque transfer and reduces wear in flywheels and hubs