Kubey Rook Crossbar Lock Tiff Blue Folding Knife [KUB508B]

A compact Wharncliffe from Kubey's team

The Rook uses a Wharncliffe working profile, placing a useful straight cutting portion below a lowered point. Kubey's in-house design pairs it with a compact folding grip and thumb-stud opening. A separate clip supplies pocket attachment.

Blade, handle and carrying size

• Blade: 3.06" (78 mm) D2 tool steel; satin finish
• Handle: Tiffany blue G10
• Mechanism: Crossbar Lock
• Pocket size: 3.94" (100 mm) closed

Materials and cutting character

The Wharncliffe profile puts a straight working edge under a lowered point. It is especially useful for following a cut line and making controlled utility cuts on a surface.

G10 is a fiberglass-and-resin composite. Its layered construction gives the scales a durable structure, while the actual machining and surface texture determine how the grip feels in hand.

After cutting, clean and dry the blade before storage. A light protective oil is particularly useful for this steel when the knife will be exposed to moisture or left unused for a while.

Crossbar Lock explained

A transverse bar engages the blade to hold it open. Pulling the bar back releases the blade for folding; the release sits near the pivot rather than along the cutting-edge channel.

Construction details

• Clip placement: The reversible pocket clip lets you change the carrying side. That affects pocket placement; it does not by itself change the lock-release design.

Specifications