{"product_id":"kolvoii-engine-cylinder-hone-set-1-1-8-4-black-4-adjustable-hones-12-220-grit-stones","title":"Kolvoii Engine Cylinder Hone Set 1-1\/8\"–4\" Black — 4 Adjustable Hones \u0026 12 220‑Grit Stones","description":"\u003cp\u003e\u003cstrong\u003eKolvoii Engine Cylinder Hone Tool Set is a complete 1\"–7\" honing solution with four adjustable hones, a flexible shaft, and 12 extra 220-grit stones for rebuilding, deglazing, and surface prep.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis professional-grade hone kit brings shop-capable cylinder reconditioning to home mechanics and small shops. Built from structural-grade A36 steel with a corrosion-resistant zinc finish, the set includes four differently sized hones (1-1\/8\", 2\", 3\" and 4\") to cover everything from small brake or mower cylinders up through large engine bores. The three-jaw self-centering design and knurled adjustment nut let you control contact pressure for consistent cross-hatch patterns, while a commercial supply of spare stones extends service life and reduces downtime.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Kolvoii hone make cylinder prep faster and more accurate?\u003c\/h3\u003e\n\u003cp\u003eThe three-claw self-centering mechanism keeps the hone balanced and aligned inside the bore, producing a repeatable cross-hatch pattern that aids ring seating and oil retention. The flexible shaft helps follow the cylinder axis for uniform contact, and the knurled nut lets you fine-tune aggression.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3-jaw design for concentric contact and even pressure\u003c\/li\u003e\n  \u003cli\u003eFlexible shaft reduces wobble and improves alignment\u003c\/li\u003e\n  \u003cli\u003eAdjustable knurled nut to set honing pressure precisely\u003c\/li\u003e\n  \u003cli\u003eZinc-coated A36 steel body for durability under shop use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich bore sizes and applications does this kit cover?\u003c\/h3\u003e\n\u003cp\u003eThis kit spans bores from roughly 1\" to 7\" using four dedicated hones sized to overlap and cover commonly serviced cylinders. It handles small brake or carburetor cylinders, lawnmower engines, motorcycles, cars, and larger marine or industrial engine blocks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1-1\/8\" hone: works roughly 1\"–2.75\" bores\u003c\/li\u003e\n  \u003cli\u003e2\" hone: fits approximately 1.25\"–3.5\" bores\u003c\/li\u003e\n  \u003cli\u003e3\" and 4\" heavy-duty hones: extend coverage to about 2\"–7\" bores\u003c\/li\u003e\n  \u003cli\u003eIncludes two cleaning brushes for prep and finishing passes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and consumables are included to keep the kit useful?\u003c\/h3\u003e\n\u003cp\u003eKolvoii supplies a commercial-grade set of 12 replacement 220-grit stones in addition to the installed stones, so you can perform many jobs before needing extras. The package also contains usage instructions and brushes to remove debris between passes and prolong stone life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwelve extra 220-grit stones for extended lifespan\u003c\/li\u003e\n  \u003cli\u003ePre-installed stones on each hone for immediate use\u003c\/li\u003e\n  \u003cli\u003eTwo cleaning brushes to clear swarf and abrasive dust\u003c\/li\u003e\n  \u003cli\u003eStorage case to protect components and keep stones organized\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the Kolvoii hone safely and get the best finish?\u003c\/h3\u003e\n\u003cp\u003eUse steady, controlled strokes while keeping the hone centered and maintaining consistent pressure level. Run the hone with appropriate cutting oil or honing solvent, clean the bore and stones frequently, and inspect the pattern and fit as you work to avoid over-honing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways use cutting oil or honing fluid for lubrication and cooling\u003c\/li\u003e\n  \u003cli\u003eWork with steady strokes and consistent pressure for even cross-hatch\u003c\/li\u003e\n  \u003cli\u003eStop periodically to clean stones and remove swarf with supplied brushes\u003c\/li\u003e\n  \u003cli\u003eCheck bore diameter and ring fit to avoid excessive material removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Kolvoii Engine Cylinder Hone Tool Set is aimed at DIY mechanics, small repair shops, restoration hobbyists, and mobile technicians who need a versatile, heavy-duty honing kit without investing in a bench-mounted machine. If you rebuild small engines, perform automotive or marine repairs, or need reliable bore reconditioning across many sizes, this set offers broad coverage, durability, and replacement stones to keep you working longer.\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: What bore sizes does the Kolvoii hone set cover?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The four hones cover roughly 1\" to 7\" bores using 1-1\/8\", 2\", 3\" and 4\" tools with overlapping ranges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are replacement stones included and what grit are they?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—12 extra commercial-grade replacement stones are included, all 220-grit for general deglazing and resurfacing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kolvoii","offers":[{"title":"Default Title","offer_id":48084160807070,"sku":"B0GKDWC779","price":79.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kolvoii-front-packaging.jpg?v=1785847851","url":"https:\/\/northtrailauto.ca\/products\/kolvoii-engine-cylinder-hone-set-1-1-8-4-black-4-adjustable-hones-12-220-grit-stones","provider":"North Trail Auto","version":"1.0","type":"link"}