Description
The Kershaw 2.5″ Amplitude Drop Point Pocket Knife (3870) is a prime example of collaborative design, bringing together Kershaw’s manufacturing expertise with the clean, functional aesthetic of custom knifemaker Todd Rexford. This compact pocket knife is engineered for reliable everyday use, offering a blend of practical features and a refined appearance that makes it a standout choice for those seeking a discreet yet capable cutting tool. Its thoughtful construction ensures smooth operation and dependable performance, whether you’re opening packages, cutting cords, or handling other daily tasks.
KEY FEATURES AND BENEFITS:
- Compact & Portable: With a 2.5-inch blade and a closed length of 3.5 inches, this knife is designed for easy pocket carry, ensuring it’s always ready without adding bulk.
- Efficient Blade Material: The 8Cr13MoV stainless steel blade provides a good balance of edge retention, strength, and hardness, making it suitable for a variety of cutting applications while being easy to maintain.
- Quick One-Handed Opening: Featuring Kershaw’s renowned SpeedSafe® assisted opening system and a convenient flipper, the blade deploys smoothly and rapidly with minimal effort.
- Secure Blade Lock-Up: The frame lock mechanism ensures the blade remains firmly open during use, enhancing safety and stability for confident operation.
- Refined All-Steel Handle: The stainless steel handle, treated with a titanium carbo-nitride coating, offers a comfortable grip and a sleek, matte gray finish that also contributes to its resistance to wear.
- Versatile Carry Options: A reversible pocket clip allows for right or left-hand, tip-up carry, providing flexibility to suit individual preferences.
SPECIFICATIONS:
- Blade Length: 2.5 in. (6.4 cm)
- Blade Material: 8Cr13MoV
- Blade Finish/Coating: Satin finish
- Blade Thickness: 0.086 in. (2.2 mm)
- Closed Length: 3.5 in. (8.9 cm)
- Handle Material: Stainless steel
- Handle Finish/Coating: Titanium carbo-nitride coating
- Handle Thickness: 0.33 in. (8.4 mm)
- Overall Length: 6 in. (15.2 cm)
- Weight: 2.6 oz. (73.7 g)
- Hardware: Glass-filled nylon backspacer, steel screws
- Included in the box when purchased: One Kershaw 3870 Amplitude 2.5 Pocket Knife
HOW TO USE:
- Removing from Pocket: Grip the knife handle firmly while using your thumb or finger to push the pocket clip against your pocket seam, then pull the knife upward to release.
- Opening the Blade: Hold the handle securely in one hand. Place your index finger on the flipper tab protruding from the back of the knife (when closed). Apply a quick, firm push downward on the flipper. The SpeedSafe® mechanism will assist the blade in smoothly rotating open until the frame lock engages.
- Confirming Lock-Up: Visually check that the frame lock has fully engaged, with the steel portion of the handle resting securely against the base of the blade. This ensures the blade is locked open for safe use.
- Cutting: Use the plain edge blade for your intended cutting task. Always cut away from your body and maintain control of the knife.
- Closing the Blade: While holding the handle firmly, use your thumb (or another finger) to push the frame lock tab away from the base of the blade. This releases the lock. Carefully fold the blade back into the handle using your other hand until it is fully closed.
- Storing: Once closed, place the knife back into your pocket or designated storage area, ensuring the blade is fully retracted and secure.
BENEFITS OF USING KERSHAW 2.5″ AMPLITUDE DROP POINT POCKET KNIFE (3870):
- Enhanced Convenience: Its compact size and one-handed opening mean it’s effortlessly accessible for everyday tasks, saving you time and effort.
- Reliable Performance: The combination of 8Cr13MoV steel and a secure frame lock ensures consistent cutting ability and peace of mind during use.
- Comfortable Handling: The all-steel handle provides a solid and comfortable grip, reducing fatigue during prolonged use and enhancing control.
- Discreet Carry: The slim profile and compact dimensions allow it to be carried unobtrusively in a pocket, blending seamlessly with your attire.
- Versatile Utility: Suitable for a wide array of daily cutting needs, from opening packages to light utility tasks, making it a valuable tool for home, office, or outdoor activities.
FEATURES:
- Designed by custom knifemaker Todd Rexford
- Plain edge drop point blade for versatile cutting
- Smooth, all-steel handle construction for a clean look
- Titanium carbo-nitride coating on handle for enhanced surface
- SpeedSafe® assisted opening mechanism
- Integrated flipper for rapid blade deployment
- Secure frame lock system
- Pocket clip can be reversed for left or right-hand carry
- Pocket clip supports tip-up carry orientation
- Compact and lightweight for everyday portability
- Backed by Kershaw’s Limited Lifetime Warranty






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