Description of the Ruike Criterion Collection S31 Knife

Brand: Ruike. Model: Criterion Collection S31 (black variant). This is a multi-functional folding knife designed for everyday use, camping, and travel, combining compact size with a set of useful tools.

Even a relatively small knife can be useful for a wide range of tasks, especially if it's the Ruike S31. This model is equipped with three tools that can solve almost any household task — from preparing food and opening packages to performing minor repairs. The kit includes a long blade with a plain edge, scissors, a bottle opener, a strap cutter, and a small screwdriver.

Materials, Heat Treatment, and Construction

The blade and additional tools are made of Sandvik 12C27 stainless steel, hardened to 58-59 HRC, which ensures excellent wear and corrosion resistance. The handle consists of solid metal liners and G10 scales, making the construction durable and ergonomic. The end part features an attachment point for a lanyard or key ring.

Dimensions, Weight, and Mechanics

When open, the S31 model measures 122 mm in length; when closed, it is 71 mm. The blade length is 53 mm, and the thickness at the spine is approximately 2.0 mm. The blade shape is Drop-point, and the cutting edge has a plain grind along its entire length. The locking mechanism type is Slip-Joint. The S31 knife weighs 52 grams.

Features and Configuration

Features:

• knife type - folding;
• when open, the S31 model measures 122 mm in length;
• knife length when closed — 71 mm;
• the blade is 53 mm long and 2.0 mm thick at the spine;
• the knife blade shape is Drop-point;
• the knife's cutting edge has a plain grind along its entire length;
• number of additional tools — 2;
• the S31 knife's blade and tools are made of Sandvik 12C27 stainless steel;
• Rockwell hardness level is 58-59 units;
• locking mechanism type — Slip-Joint;
• handle scales are made of G10;
• this model is available in three variants — with a black, brown, or dark green handle;
• the end part features an attachment point for a lanyard;
• the S31 knife weighs 52 grams.

Warranty: The official warranty for the Ruike S31 folding knife is 5 years.

Tools included in the model

Tools:

• 1. Long blade
• 2. Key ring/lanyard attachment
• 3. Scissors
• 4. Bottle opener
• 5. Strap cutter
• 6. Small 4 mm screwdriver

Additional information: The triangle indicates the year, and the numbers indicate the month when this knife was manufactured. Our assortment includes three handle options: black, brown, and dark green. The model is ideal for those looking for a high-quality, compact, and reliable multi-functional knife from the manufacturer Ruike, designed for camping, tourism, and everyday carry. Product category: Camping & Tourism > Tourism > Multi-functional Knives.

Other products in this category here Multi-functional Knives