SOG Ultra XR Carbon and Graphite Folding Knife

SOG SKU: 729857010191
sog ultra xr carbon and graphite folding knife 12 63 01 57 venture 6

SOG Ultra XR Carbon and Graphite Folding Knife

SOG SKU: 729857010191
Colour
Regular price $336.99
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  • Overall Length Cm: 16.3
  • Overall Length In: 6.4
  • Closed Length Cm: 9.1
  • Closed Length In: 3.6
  • Blade Length Cm: 7.1
  • Blade Length In: 2.8
  • Weight G: 34
  • Weight Oz: 1.2
  • Blade Material: CRYO CPM S35VN Stainless Steel
  • Blade Thickness Mm: 2
  • Blade Thickness In: 0.08
  • Blade Style: Clip Point
  • Blade Finish: Graphite TiNi
  • Blade Grind: Saber
  • Blade Edge Type: Straight
  • Handle Material: Carbon Fiber
  • Handle Thickness Mm: 6.5
  • Handle Thickness In: 0.26
  • Handle Color: Black (Carbon Fiber)
  • Locking Mechanism: XR Lock
  • Opening Mechanism: Thumb Hole
  • Rc Hardness: 59-61
  • Sharpening Angle Degrees: 18
  • Country Of Origin: China

At just 34g (1.2oz), the SOG Ultra XR Carbon and Graphite Folding Knife sets a benchmark for what a premium everyday carry folder can be. Built around a cryogenically heat-treated CPM S35VN stainless steel blade with a Graphite TiNi finish, this knife combines serious metallurgy with a featherlight carbon fibre handle to produce one of the most carry-friendly folders on the market. CPM S35VN is a particle metallurgy stainless steel alloy renowned for its superior edge retention, toughness, and ease of resharpening compared to many other premium steels, and SOG's cryo treatment pushes the blade to a Rockwell hardness of 59-61 HRC for consistent, long-wearing performance. The result is a knife that disappears in your pocket but delivers when you need it.

SOG Ultra XR Carbon and Graphite Folding Knife Key Features

  • Blade Steel: CRYO CPM S35VN stainless steel, cryogenically heat-treated to SOG's specifications and finished with a Titanium Nitride (TiNi) coating. This combination delivers excellent edge retention, corrosion resistance, and a hard-wearing graphite finish that reduces glare and surface friction.
  • Blade Geometry: 7.1cm (2.8") clip point blade with a saber grind, straight edge, and 2mm (0.08") thickness, sharpened to an 18-degree angle per side. The saber grind balances strength behind the edge with good slicing performance, and the clip point offers precise tip control.
  • Rockwell Hardness: Rated at 59-61 HRC. This places the blade firmly in the premium performance range, meaning it holds a sharp edge longer under regular use before requiring resharpening.
  • XR Lock Mechanism: SOG's proprietary XR Lock provides secure, single-handed ambidextrous blade deployment and lockup rated to withstand 1,500 pounds (680kg) of force. It opens cleanly via a thumb hole cut directly into the blade and releases just as predictably, making it reliable under repetitive daily use.
  • Handle Material: Full carbon fibre construction at just 6.5mm (0.26") thick. Carbon fibre offers an exceptional strength-to-weight ratio, giving the handle rigidity and durability without adding bulk or mass.
  • Weight and Dimensions: 34g (1.2oz) overall weight, 16.3cm (6.4") open, 9.1cm (3.6") closed. The ultra-flat, super-slim profile makes this one of the least intrusive EDC folders available at this performance level.
  • Deep Carry Titanium Pocket Clip: The titanium clip sits deep in the pocket for a low-profile carry position and is configured for tip-up carry on either the left or right side. It also functions as a money clip, adding genuine everyday utility without extra weight.
  • Opening Mechanism: Manual thumb hole action. Clean, consistent, and reliable with no springs or assisted mechanisms that can wear or malfunction over time.

The SOG Ultra XR Carbon and Graphite is a folder built for people who want premium materials and engineering in the slimmest possible package. Whether it lives in a jeans pocket, shirt pocket, or clipped to a jacket, it carries light and performs well above its weight class.

How light is the SOG Ultra XR, and will it add much bulk to my pocket?

The Ultra XR weighs just 34 grams (1.2 oz) and closes to only 9.1 cm (3.6 inches) with a handle thickness of 6.5 mm — making it genuinely super-flat and pocketable. The deep-carry titanium clip keeps it sitting low in your pocket, so it barely registers whether you're wearing jeans or dress trousers.

What makes the CPM S35VN blade on this knife worth choosing over more common steels?

The blade uses cryogenically heat-treated CPM S35VN stainless steel, hardened to 59–61 HRC. This premium powder-steel offers an excellent balance of edge retention, toughness, and corrosion resistance. The Graphite TiNi (Titanium Nitride) coating adds further protection and reduces friction, meaning the edge stays sharper longer with minimal day-to-day maintenance.

How does the XR Lock work, and is it safe to use with one hand?

The XR Lock is a manual locking mechanism designed for smooth, ambidextrous single-handed operation via a thumb hole. Once open, it securely locks the blade in place and is rated to withstand 1,500 pounds of force. It's a reliable choice for everyday tasks where confident, one-handed access and solid blade security both matter.

Can I carry this knife on either side, and does the clip serve any other purpose?

Yes — the deep-carry titanium pocket clip supports both right and left-hand carry in a tip-up position, making it genuinely ambidextrous. The clip is also designed to double as a money clip, adding a practical everyday carry function beyond simply securing the knife in your pocket.

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Shipping Rates & Options
We offer straightforward flat rate shipping options:

  • Standard Shipping - $14.99: Generally delivered within 2 - 4 days of dispatch to metropolitan areas. Please allow an extra 1 - 2 days for us to pick and pack your order. You will be given tracking details to monitor your order's journey.
  • Jump The Queue Shipping - $19.99: For those in a hurry, orders placed before 2 pm AEST will be packed and dispatched on the same day. If placed after 2 pm AEST, they'll be dispatched the next business day. Tracking details will be provided for your convenience. Please note that this is not express shipping, for express shipping quotes please contact our team at 07 3391 2299.

 
Additional Shipping Charges

  • Bulky Items Surcharge - $39.99: Certain items due to their size and nature require an additional fee for shipping. Bulky items include, but are not limited to, Firearms, Compound Bows, and Spearguns.
  • Extra Bulky Item Surcharge - $89.99:Certain items due to their size and nature require an additional fee for shipping. Extra Bulky items include, but are not limited to, Firearm Safes, Treestands and Feeders.
  • Shipping Insurance - $4.99: For added peace of mind, avail of our Australia-wide shipping insurance to safeguard your order during transit.

 
Shipping Specifics
Please note:

  • Prices mentioned apply mainly to mainland Australia. Offshore islands and territories might face extra delivery costs. In such instances, our customer service will reach out to you.
  • For larger or bulkier orders which necessitate road transport, delivery times might extend.
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