Top-Notch 205-Piece Woodruff Keys Assortment Kit - 12 Essential Metric Sizes in Rock-Solid Carbon Steel for Pro Mechanical and Fastener Projects, Including 3x10x3.7mm, 3x13x5mm, 3x16x6.5mm, 4x13x5mm, 4x16x6.5mm, and More for DIY or Shop Use

Premium 205-Piece Woodruff Keys Set for Strong Fits
✔️ 205-piece carbon steel metric woodruff keys assortment

This durable 205-piece woodruff keys kit includes 12 metric sizes, neatly packed in a clear storage box for quick access. It’s perfect for pulleys, drive shafts, hubs, and other mechanical assemblies in DIY projects or shop environments.

✅ 205Pcs total across 12 metric sizes
✅ Carbon steel construction for wear and corrosion resistance
✅ Semi-circular design fits half-moon shaft grooves
✅ Burr-free finish prevents finger scratches
✅ Packed in a transparent box for easy access
✅ Suitable for pulleys and drive shaft hubs
✅ Sizes: 3x10x3.7mm, 3x13x5mm, 3x16x6.5mm, 3x19x7.5mm, 4x13x5mm, 4x16x6.5mm, 4x19x7.5mm, 5x16x6.5mm, 5x19x7.5mm, 5x22x9mm, 6x22x9mm, 6x28x11mm

💡 What is a woodruff key used for in pulley and shaft assemblies?

Woodruff keys lock hub to shaft, enabling torque transmission and precise alignment in rotating equipment.

- In pulley and shaft apps, they prevent slip and maintain timing - They fit into half-moon grooves on the shaft to seat the hub - Carbon steel woodruff keys resist wear and handle high-speed operation ✝️