{"product_id":"flex-hone-cylinder-hone-3-3-4-in-240-grit-flexible-plateau-finish","title":"Flex-Hone Cylinder Hone 3-3\/4 in 240 Grit - Flexible Plateau Finish","description":"\u003cp\u003eIn this review the Flex-Hone Cylinder Hone, GB Series, is examined for machinists and mechanics who need a reliable, hand- or machine-operated finishing tool. The bottom line: this tool is for anyone seeking a consistent \u003cstrong\u003eplateau finish\u003c\/strong\u003e and oil-retentive cross hatch in bores, with the biggest reason to buy being its self-centering, self-aligning design that compensates for wear and simplifies setup for both manual and CNC use.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eFlexible abrasive cylinder:\u003c\/strong\u003e Provides uniform contact with the bore for consistent surface finishing without complex fixturing.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSelf-centering action:\u003c\/strong\u003e The tool centers itself in the bore which reduces operator alignment time and improves repeatability.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSelf-compensating for wear:\u003c\/strong\u003e Abrasive beads maintain effective cutting geometry as they wear, extending usable life and smoothing results.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHand or CNC use:\u003c\/strong\u003e Designed to be effective whether used by hand or in CNC equipment, offering versatility across workshop setups.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOrder by actual bore size:\u003c\/strong\u003e Tools are produced oversized so selecting the actual bore size delivers the correct finished diameter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Flex-Hone is best for automotive engine builders, maintenance technicians, and precision hobbyists who want a controlled \u003cstrong\u003eoil-holding cross hatch\u003c\/strong\u003e and improved sealing surface in cylinders, valve guides, or other bores. Its ease of use and tolerance for wear make it appealing where consistent finishes are needed without expensive honing rigs.\u003c\/p\u003e\n\u003cp\u003eUsers who require heavy material stock removal or highly precise diameter correction beyond light finishing should consider more aggressive or dedicated sizing tools, as the Flex-Hone is optimized for finishing and deburring rather than rough boring or major size correction.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eProduces a true \u003cstrong\u003eplateau finish\u003c\/strong\u003e that helps oil retention and improves sealing surfaces.\u003c\/li\u003e\n \u003cli\u003eSelf-aligning and self-centering design reduces setup time and operator error.\u003c\/li\u003e\n \u003cli\u003eWorks by hand or in CNC equipment, so it fits varied shop workflows.\u003c\/li\u003e\n \u003cli\u003eAvailable in a wide range of sizes so it can be matched to many bore diameters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNot intended for heavy stock removal; best used for finishing and deburring rather than major bore resizing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eBrush Research FLEX-HONE GB Series\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e3-3\/4 in (95 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eAbrasive\u003c\/td\u003e\n\u003ctd\u003eSilicon Carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eGrit\u003c\/td\u003e\n\u003ctd\u003e240 grit\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eHand or CNC equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eKey behavior\u003c\/td\u003e\n\u003ctd\u003eSelf-centering, self-aligning, self-compensating for wear\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSize ordering\u003c\/td\u003e\n\u003ctd\u003eOrder by actual bore size; tool produced oversized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor anyone who needs a predictable finishing tool that yields a plateau finish and enhanced oil retention, the Flex-Hone GB Series is a practical choice. It offers versatility for both manual and CNC applications and saves setup time through its self-centering design, making it a good value for finishing tasks where a consistent cross hatch and gentle deburring are the goals.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in CNC machines?\u003c\/strong\u003e\u003cbr\u003eYes. The tool is designed for both hand use and CNC equipment, providing flexible application across shop environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I order the tool by bore size?\u003c\/strong\u003e\u003cbr\u003eYes. The manufacturer instructs to order by the actual bore size because the tool is produced oversized and finishes to the correct diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for heavy material removal?\u003c\/strong\u003e\u003cbr\u003eNo. The Flex-Hone is intended for finishing and deburring to create a plateau finish, not for aggressive stock removal or major resizing.\u003c\/p\u003e","brand":"Flex-Hone","offers":[{"title":"Default Title","offer_id":48713533980891,"sku":"B002XUL1G2","price":59.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41sZRrnoWHL._SY445_SX342_QL70_FMwebp_6ea81871-f0e8-48d6-8704-ef8b3fca41d0.webp?v=1778807672","url":"https:\/\/gearmusthave.com\/products\/flex-hone-cylinder-hone-3-3-4-in-240-grit-flexible-plateau-finish","provider":"GearMustHave","version":"1.0","type":"link"}