CASE KNIVES
High quality, extremely collectible handmade knives since the 1800s.
SHOP CASE KNIVESThe Frost Crookes Brothers AO Linerlock Folding Knife blends time-honored Sheffield heritage with modern tactical performance. Inspired by the legacy of Crookes Brothers, the respected 19th-century Sheffield cutlery firm founded by Henry and John Crookes, this knife carries forward a tradition of dependable craftsmanship while delivering the speed and strength today’s users expect.
Built as a 5-inch closed tactical folder, this knife opens with decisive authority thanks to its spring-assisted mechanism. A quick push on the thumb stud sends the 3.5-inch polished 420 stainless steel blade into action. Measuring 0.118 inches thick, the blade offers a solid balance of slicing efficiency and everyday durability. The classic profile and clean polished finish give it a sharp, professional look while the 420 stainless steel construction provides corrosion resistance and easy maintenance, making it a practical choice for daily carry.
The handle sets this knife apart. Brown G-10 scales provide a secure, textured grip that won’t slip under pressure. Embedded in the handle is a striking blue titanium-coated cross insert that adds bold contrast and distinctive character. It’s a detail that nods to old-world styling while embracing modern materials. The result is a handle that feels solid in hand and stands out in the pocket.
A sturdy liner lock keeps the blade firmly in place during use, delivering the confidence you need for controlled cutting tasks. At 8.5 inches overall when open, it offers ample reach without feeling oversized. The titanium-coated pocket and belt clip ensures secure, tip-down carry and complements the blue cross insert for a cohesive, eye-catching finish.
Whether you’re drawn to its Sheffield-inspired roots or its modern assisted-opening performance, this Frost Crookes Brothers folder delivers strength, style, and everyday functionality in one well-built package. It’s a knife that respects tradition but isn’t stuck in the past.
Sheffield-inspired heritage meets modern assisted-opening performance, available at SMKW.