{"product_id":"benchmade-ben-290bk-1","title":"Benchmade Full Immunity 290BK-1 – 2.49″ Cobalt Black CPM-M4 Wharncliffe, Flat Dark Earth Aluminum, AXIS Lock","description":"\u003ch2\u003eBenchmade Full Immunity 290BK-1 – Compact CPM-M4 Wharncliffe Folder\u003c\/h2\u003e\u003cp\u003eWhen blade length is restricted, capability doesn't have to be. The Benchmade Full Immunity 290BK-1 puts a sub-2.5\" CPM-M4 wharncliffe blade into a slim, easily concealed package, finished in Cobalt Black and mounted between Flat Dark Earth anodized aluminum scales. The wharncliffe grind runs dead straight to an ultra-fine point, which makes it a precise cutter for detail work, opening packages and general utility. The included lanyard speeds retrieval out of a deep pocket, and the AXIS lock lets you open and close the knife with either hand. It is a lot of tactical folding knife in a very small footprint.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Length\u003c\/td\u003e\n\u003ctd\u003e2.49\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Thickness\u003c\/td\u003e\n\u003ctd\u003e0.09\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Steel\u003c\/td\u003e\n\u003ctd\u003eCPM-M4 (62-64 HRC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Style\u003c\/td\u003e\n\u003ctd\u003eWharncliffe, plain edge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlade Finish\u003c\/td\u003e\n\u003ctd\u003eCobalt Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpen Length\u003c\/td\u003e\n\u003ctd\u003e5.94\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosed Length\u003c\/td\u003e\n\u003ctd\u003e3.46\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandle Thickness\u003c\/td\u003e\n\u003ctd\u003e0.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandle Material\u003c\/td\u003e\n\u003ctd\u003eFlat Dark Earth anodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock\u003c\/td\u003e\n\u003ctd\u003eAXIS lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePocket Clip\u003c\/td\u003e\n\u003ctd\u003eMini deep-carry, tip-up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanyard\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.29 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch3\u003eWhat is a wharncliffe blade, and what is it good for?\u003c\/h3\u003e\u003cp\u003eA wharncliffe has a completely straight edge with the spine curving down to meet it at the tip. Because there is no belly, the entire edge contacts your work at once, which makes it excellent for controlled slicing on a flat surface, cutting cordage and box work. The needle-fine point on the Benchmade Full Immunity 290BK-1 also makes it a strong choice for detail tasks and piercing cuts.\u003c\/p\u003e\u003ch3\u003eIs CPM-M4 good knife steel?\u003c\/h3\u003e\u003cp\u003eCPM-M4 is a high-carbon, high-vanadium tool steel run at 62-64 HRC, and it is one of the best edge-retention steels Benchmade offers. It holds a working edge far longer than typical stainless steels and is very tough for its hardness. The tradeoff is that CPM-M4 is a tool steel, not a stainless one, so the blade on the Benchmade Full Immunity 290BK-1 needs a little care.\u003c\/p\u003e\u003ch3\u003eHow do you care for the CPM-M4 blade on this knife?\u003c\/h3\u003e\u003cp\u003eCPM-M4 is not stainless and can develop surface rust or patina if it is left wet or stored damp. Wipe the blade dry after use, especially after cutting anything acidic or salty, and put a light film of oil on it before long-term storage. The Cobalt Black finish on the Benchmade Full Immunity 290BK-1 protects the flats, but the sharpened edge itself is bare steel and is the part to watch.\u003c\/p\u003e\u003ch3\u003eWhat is the difference between the Full Immunity and the Partial Immunity?\u003c\/h3\u003e\u003cp\u003eBoth are compact AXIS-lock folders built on the same small platform. The Full Immunity, including the Benchmade Full Immunity 290BK-1, uses full aluminum handle scales and a manual thumb-stud opening, while the Partial Immunity is the automatic version of the design. The Full Immunity is the choice where automatic knives are restricted.\u003c\/p\u003e\u003ch3\u003eHow does the AXIS lock work?\u003c\/h3\u003e\u003cp\u003eThe AXIS lock uses a spring-loaded steel bar that rides in slots in the liners and drops behind the blade tang when the knife is open. Pulling the bar back with the thumb studs releases the blade from either side, so the Benchmade Full Immunity 290BK-1 opens and closes fully ambidextrously without putting a finger in the blade path.\u003c\/p\u003e\u003ch3\u003eDoes this knife qualify for Benchmade LifeSharp?\u003c\/h3\u003e\u003cp\u003eYes. LifeSharp is Benchmade's lifetime sharpening and factory service program, and the Benchmade Full Immunity 290BK-1 is covered. Send the knife in and Benchmade will sharpen it, clean and lubricate the mechanism, replace worn hardware and return it ready to carry.\u003c\/p\u003e\u003ch3\u003eWhere is the Benchmade Full Immunity 290BK-1 made?\u003c\/h3\u003e\u003cp\u003eBenchmade designs and manufactures in Oregon City, Oregon, and the Full Immunity line is part of that USA-made production.\u003c\/p\u003e\u003ch3\u003eWhere can I buy the Benchmade Full Immunity 290BK-1?\u003c\/h3\u003e\u003cp\u003eGoing Gear is an authorized Benchmade dealer, so the Benchmade Full Immunity 290BK-1 you buy here is factory-fresh, fully warrantied and backed by Benchmade's LifeSharp service.\u003c\/p\u003e","brand":"Benchmade","offers":[{"title":"Default Title","offer_id":53025101775168,"sku":"BEN-290BK-1","price":325.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0807\/8953\/7088\/files\/290bk-1-front-view_f1a0012b-4dfc-4caa-bf8c-e79f3671e82e.jpg?v=1786817749","url":"https:\/\/goinglights.com\/products\/benchmade-ben-290bk-1","provider":"Going Lights","version":"1.0","type":"link"}