{"product_id":"hasaomoi-woodruff-key-assortment-kit-530pcs-metric-37-sizes-high-hard-carbon-steel-case","title":"HASAOMOI Woodruff Key Assortment Kit 530pcs Metric (37 Sizes) — High‑Hard Carbon Steel, Case","description":"\u003cp\u003e\u003cstrong\u003eThe HASAOMOI 530-piece metric Woodruff key assortment supplies a full range of precision keys (37 sizes) stored in a durable case for fast selection and reliable mechanical fits.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit is built for mechanics, fabricators, and DIYers who need an organized selection of Woodruff and feather keys for maintenance, repair, and assembly tasks. All components are manufactured from high-hard carbon steel for wear resistance and consistent performance; the set covers a broad size range so you can match the exact key profile without improvisation. The clear, compartmented plastic case keeps parts visible and reduces downtime searching for the right size.\u003c\/p\u003e\n\n\u003ch3\u003eWhich sizes and quantities are included in this kit?\u003c\/h3\u003e\n\u003cp\u003eThe assortment contains 37 metric sizes distributed across 530 total pieces, combining half-moon Woodruff keys and round-ended feather keys to address common shaft and hub applications. Sizes span from small to large (approximately 8 mm up to 30 mm) so you can accommodate varied equipment specifications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e530 pieces total: mixed Woodruff and round-ended feather keys\u003c\/li\u003e\n  \u003cli\u003e37 distinct metric sizes for precise fits\u003c\/li\u003e\n  \u003cli\u003eSize coverage roughly 8 mm through 30 mm for versatility\u003c\/li\u003e\n  \u003cli\u003eOrganized by size in a compartmented storage case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does material and finish affect performance?\u003c\/h3\u003e\n\u003cp\u003eEach key is formed from high-hard carbon steel to offer strength under shear loads and resistance to deformation. The material provides better long-term service in rotating assemblies than softer alloys, while a controlled finish ensures consistent seating inside the keyway.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-hard carbon steel for improved durability and load resistance\u003c\/li\u003e\n  \u003cli\u003ePrecision-formed profiles for repeatable seating and fit\u003c\/li\u003e\n  \u003cli\u003eConsistent finish to reduce burrs and improve installation\u003c\/li\u003e\n  \u003cli\u003eSuitable for common mechanically loaded connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make the storage case practical on the job?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes a rugged plastic case with labeled compartments so sizes remain separated and immediately accessible. Transparent lid and fixed dividers let you inventory parts at a glance and keep the workbench tidy during repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClear, hinged lid for quick visual checking of contents\u003c\/li\u003e\n  \u003cli\u003eIndividual compartments to prevent mixing of sizes\u003c\/li\u003e\n  \u003cli\u003eCompact footprint fits on a shelf, in a toolbox, or in a service van\u003c\/li\u003e\n  \u003cli\u003eSecure latches keep parts contained in transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will this kit support common workshop and vehicle repairs?\u003c\/h3\u003e\n\u003cp\u003eWoodruff and feather keys are used to lock hubs, pulleys, gears, and couplings to shafts; having the correct size on hand prevents makeshift fixes and reduces machine downtime. This assortment lets you replace damaged keys quickly and match OEM key dimensions for safer reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits typical automotive, agricultural, and industrial shafts and hubs\u003c\/li\u003e\n  \u003cli\u003eEnables fast replacement of worn or broken keys during service\u003c\/li\u003e\n  \u003cli\u003eReduces need for on-the-spot fabrication or improvisation\u003c\/li\u003e\n  \u003cli\u003eUseful for prototyping, restoration, and preventive maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The HASAOMOI 530-piece metric Woodruff key set is intended for professional mechanics, industrial maintenance technicians, hobby machinists, and serious DIY homeowners who require a broad, organized selection of keys for shaft-to-hub assemblies. If you frequently service rotating equipment or restore vintage machinery where exact key sizes matter, this kit helps you work faster and with greater confidence.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these keys hardened for heavy-duty use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The keys are made from high-hard carbon steel designed to resist wear and handle typical mechanical shear loads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the case include size labels for each compartment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The plastic case is compartmented and arranged by size for quick selection and inventory control.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HASAOMOI","offers":[{"title":"Default Title","offer_id":48083318374558,"sku":"B0D9BBC7DH","price":54.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hasaomoi-front-of-case.jpg?v=1785831498","url":"https:\/\/northtrailauto.ca\/products\/hasaomoi-woodruff-key-assortment-kit-530pcs-metric-37-sizes-high-hard-carbon-steel-case","provider":"North Trail Auto","version":"1.0","type":"link"}