140Pcs Key Stock Set, 304 Stainless Keystock Kit With Round Ended Feather Keys, 16 Sizes For Shaft Keyways, Heavy Duty Mechanical Hardware Pack For Gearheads And Pros

304 Stainless Key Stock Kit with 16 Sizes, 140pc
✔️ Includes 140 pcs across 16 sizes of round-ended feather keys

This 140-piece key stock assortment kit is crafted from 304 stainless steel, delivering high hardness and corrosion resistance. It’s ideal for securing pulleys, drive shafts, and hubs where snug keyway engagement transfers torque efficiently. The transparent, compartmentalized storage keeps sizes easy to grab in busy workshops.

✅ 3x3x8mm - 10 pcs
✅ 3x3x10mm - 10 pcs
✅ 3x3x12mm - 10 pcs
✅ 3x3x16mm - 10 pcs
✅ 4x4x10mm - 10 pcs
✅ 4x4x12mm - 10 pcs
✅ 4x4x16mm - 10 pcs
✅ 4x4x20mm - 10 pcs
✅ 5x5x12mm - 10 pcs
✅ 5x5x16mm - 10 pcs
✅ 5x5x20mm - 10 pcs
✅ 5x5x25mm - 10 pcs
✅ 6x6x16mm - 5 pcs
✅ 6x6x20mm - 5 pcs
✅ 6x6x25mm - 5 pcs
✅ 6x6x30mm - 5 pcs

💡 What is a round-ended feather key stock kit used for in mechanical assemblies? It's handy for keeping shafts and hubs aligned and transferring torque in everyday gear setups. - Perfect for securing pulleys, drive shafts, and hubs via matching keyways - Made of 304 stainless steel for corrosion resistance and long service life - 16 sizes and 140pcs cover common shaft keyway standards for quick repairs