HOPIAN Periodic D2 Folding Knife – Black G10 / Black Blade

The Periodic is a designer collaboration folding knife created with Torpen Knives, built around a bold profile, practical control, and dependable everyday performance. This black G10 version pairs a black-finished D2 sheepsfoot blade with textured black G10 handle scales for a clean, low-profile look.

The 3.27-inch sheepsfoot blade uses a flat grind for controlled cutting and efficient slicing across regular EDC tasks. Made from D2 steel and heat-treated to HRC 58–60, the blade offers solid edge retention and wear resistance, while the black finish gives the knife a restrained working appearance.

With an overall length of 7.75 inches and a carry weight of 133.7 grams, the Periodic has a substantial feel without becoming oversized. The contoured G10 handle provides secure hand placement, the ceramic ball-bearing pivot supports smooth opening action, and the liner lock keeps operation simple and familiar. A stainless-steel pocket clip completes the design for daily carry.

Key Features

• Designed in collaboration with Torpen Knives

• 3.27-inch D2 sheepsfoot blade

• Black blade finish

• Flat grind for controlled, efficient cutting

• Textured black G10 handle

• Ceramic ball-bearing pivot

• Liner-lock construction

• Stainless-steel pocket clip

Specifications