{"product_id":"machinewise-sonora-3-35-integral-button-lock-flipper-s90v-61-1-hrc-serial-2398-made-in-usa-mw-sonora-2398","title":"MachineWise Sonora 3.35\" Integral Button Lock Flipper, S90V 61.1 HRC, Serial 2398, Made in USA (MW-SONORA-2398)","description":"\u003ch2\u003eMachineWise Sonora. Serial 2398. Tested at 61.1 HRC.\u003c\/h2\u003e\n\u003cp\u003eThe Sonora is MachineWise's first folding knife, built by a five person team in Phoenix, Arizona. Every one is CNC machined in house, serialized, and individually Rockwell tested before it ships.\u003c\/p\u003e\n\u003cp\u003eThis one is serial 2398, assembled by A.D., final QC by GH, dated October 7, 2026. Its blade measured 61.1 HRC on its own Rockwell test.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: MachineWise\u003c\/li\u003e\n\u003cli\u003eModel: Sonora\u003c\/li\u003e\n\u003cli\u003eSerial Number: 2398\u003c\/li\u003e\n\u003cli\u003eBlade Length: 3.35\"\u003c\/li\u003e\n\u003cli\u003eOverall Length: 7.95\"\u003c\/li\u003e\n\u003cli\u003eClosed Length: 4.4\"\u003c\/li\u003e\n\u003cli\u003eBlade Thickness: 0.125\"\u003c\/li\u003e\n\u003cli\u003eBlade Steel: CPM S90V\u003c\/li\u003e\n\u003cli\u003eBlade HRC: 61.1, individually tested\u003c\/li\u003e\n\u003cli\u003eBlade Style: Drop point\u003c\/li\u003e\n\u003cli\u003eHandle: Integral Grade 5 titanium\u003c\/li\u003e\n\u003cli\u003eLock: Button lock\u003c\/li\u003e\n\u003cli\u003eDeployment: Flipper tab\u003c\/li\u003e\n\u003cli\u003ePivot: Bushing pivot with hardened stainless washers\u003c\/li\u003e\n\u003cli\u003ePocket Clip: Reversible, right or left hand, tip up\u003c\/li\u003e\n\u003cli\u003eWeight: 3.5 oz\u003c\/li\u003e\n\u003cli\u003eWarranty: MachineWise unconditional lifetime warranty\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Made in USA (Phoenix, Arizona)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIntegral Means One Piece\u003c\/h3\u003e\n\u003cp\u003eThis is the part that separates the Sonora from the Mojave. Where the Mojave is built as two slabs sandwiched together, the Sonora's entire frame is machined from a single block of Grade 5 titanium.\u003c\/p\u003e\n\u003cp\u003eThat takes the assembly down to two screws plus the pivot. Fewer parts means fewer places for tolerance to stack up, and it is also a far more expensive way to make a knife, because most of that titanium block ends up as chips on the shop floor.\u003c\/p\u003e\n\u003ch3\u003eEvery Knife Gets Tested\u003c\/h3\u003e\n\u003cp\u003eMachineWise Rockwell tests each blade individually rather than testing a batch and printing the number on every card. That is why the card on this knife reads 61.1 and the one next to it reads something else.\u003c\/p\u003e\n\u003cp\u003eIt ships with that QC card plus a certificate of authenticity confirming the steel composition, so the hardness claim on this listing is a measurement from this blade and not a specification sheet.\u003c\/p\u003e\n\u003ch3\u003eS90V\u003c\/h3\u003e\n\u003cp\u003eS90V is a high vanadium powder steel, and edge retention is what it is for. It holds an edge far longer than most stainless, and the trade is that it takes real work to sharpen when you finally get there.\u003c\/p\u003e\n\u003cp\u003eOn a 0.125\" blade ground thin, that combination makes sense. There is not much steel to work through at the edge.\u003c\/p\u003e\n\u003ch3\u003eWhat Comes in the Box\u003c\/h3\u003e\n\u003cp\u003eMachineWise ships the Sonora in their biscuit tin, with a T15 driver, a sample of Carbon Honey Thin lubricant, the QC card and COA, and a maintenance card. The whole thing is backed by an unconditional lifetime warranty.\u003c\/p\u003e\n\u003ch3\u003eWhy This One Stands Out\u003c\/h3\u003e\n\u003cp\u003eAn integral titanium frame, a button lock on a bushing pivot, and a hardness number that belongs to this blade alone.\u003c\/p\u003e\n\u003cp\u003eProudly carrying American\u003c\/p\u003e","brand":"MachineWise","offers":[{"title":"Default Title","offer_id":67587713237172,"sku":"MW-SONORA-2398","price":930.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/4049\/4516\/files\/IMG_4902_56979b5e-d595-4c54-a873-ce0d09cef012.jpg?v=1791830237","url":"https:\/\/lonestarknife.com\/products\/machinewise-sonora-3-35-integral-button-lock-flipper-s90v-61-1-hrc-serial-2398-made-in-usa-mw-sonora-2398","provider":"Lone Star Knife \u0026 Supply","version":"1.0","type":"link"}