Ruike S Series keyring knife: Compact and convenient for every day carry Specifications: Feature Blade Length: 53mm/2.1″ Finish: Mirror Grind: Hollow Overall Length: 122mm/4.8″ Blade Material: 12C27 Handle Material: G10 WEIGHT: 52 g / 1.83 oz Tools 1. Blade 2. Key ring 3. Scissors (PS: s21 don't have this function) 4. Bottle opener 5. Belt cutter 6. Small screwdriver 4 mm Ruike S Series small pocket keychain knife: Equipped with a stainless steel keyring and a couple of tools, the S series is great for daily tasks One of the highlight is a hollow ground blade for accurate piercing and cutting work. "RUIKE" /reik/) was founded in 1998 RUIKE is always committed to the value and mission of innovating high-quality and reliable practical knives and tools, taking into consideration experiences of all users. For the person of action, RUIKE is the smart choice: a fine and capable knife you can confidently wield because of its fine craftsmanship and excellent quality. Dominating the everyday carry, folding pocket keychain knife market, Ruike creates high-quality, high-performance, exceptional, working tools and knives affordable to all consumers. Ruike always chooses appropriate, top notch materials and is dedicated to intensive craftsmanship of hardworking pocketknives, or special collectors’ editions. Ruike’s advanced technology and innovative design combine to create solid, crafted, reliable knives users are proud to carry. LARGE BLADE The main blade of the RUIKE small multitool knives have enhanced thickness and width, providing greater durability and blade capability compared to the competition. Screwdriver A versatile screwdriver that has everything the professional needs. It is designed to meet a variety of needs such as domestic appliances, furniture, automotive, factory, and everyday. Bottle Opener Made of stainless steel, sturdy and durable this function opens wine, beer, soft drinks, soda water, coca cola and more. A tool that is great for professional bartenders or home use. SHARPENING To re-sharpen your tactical knife, use a whetstone at an angle of 15°– 20°. This will result in a cutting angle of 30°– 40°. If sharpening on a grinding wheel, always cool with plenty of water to avoid excessive temperatures and the resulting damages that may occur. Iconic Design Ruike invented a special mechanism allowing it to attach the tools on both sides of the handle, using the same to hold the tools in place. This innovative design meant Ruike could put twice as many features on the edc multitool knife, which included a blade, a second smaller cutting blade, reamer, can-opener, screwdriver, corkscrew, and wood fiber grips. SANDVIK 12C27 BLADE MATERIAL Multi tool tactial pocket knives are made from Sandvik 12C27 stainless steel. Outside of superior corrosion resistance, the steel provides the blades with added strength, giving the blades the ability to retain sharpness for longer. G10 KNIFE HANDLE G10 mini folding knife handles are a blend of fiberglass and resin, giving the knives the ability to withstand intense forces, preventing scrapes and general abrasion. CLEANING If the blades of multi tool knife begin to stick together, open and close the blades in warm water several times - this will allow the tools to move easily again. Once dry, apply a drop of edc keychain Knife Oil between each tool and its spring. Do not put small Knives in the dishwasher.