Pulley Keyway Key,Parallel Square Stock Key,Parallel Drive Shaft Keys Sets, Flywheel Keys, Keyway Stock, Keyway Tension for Fasteners Mechanical Industry. (140pcs 3mm 4mm 5mm 6mm)

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• 【Versatile Assortment】 This Pulley Key set offers a wide variety of sizes, ranging from 3mm to 12mm, to satisfy different needs. With a mix of 60 pieces, you'll have plenty of options for fastening various equipment.Whether you're a professional or DIY enthusiast, this comprehensive assortment ensures you'll always have the right size at your fingertips.
• 【High-Quality and Durable】The Pulley Keyway Keys is made of high-quality carbon steel material, with precise craftsmanship, smooth surface, no burrs, corrosion and rust resistance, not easy to break or deform, and durable.
• 【Convenient Storage and Portability】 Equipped with a plastic box, this Pulley Key set allows for easy organization and storage. The box ensures your parallel keys are in an organized manner, making it simple to locate and retrieve the specific size you need. Additionally, the compact and lightweight design of the box makes it convenient to carry and transport, ideal for professionals on the go.
• 【Package Includes】 140 pieces in total, 10 pieces each of the following sizes: 3x3x8mm, 3x3x10mm, 3x3x12mm, 3x3x16mm, 4x4x10mm, 4x4x12mm, 4x4x16mm, 4x4x20mm, 5x5x12mm, 5x5x16mm, 5x5x20mm, 5x5x25mm, 5 pieces each of the following sizes: 6x6x 16mm, 6x6x20mm, 6x6x25mm , 6x6x30mm, the quantity is sufficient, the size is rich, to meet the needs of different fields.
• 【Wide Application】 You can use the round ended feather keys to fasten the equipment and applications, they easily fit into a mating keyway to transfer torque at shafts and hubs, Great fastener to improve efficiency.