TRIVISA UMa-05B Liner Lock CF Folding Knife [TVTY07BCTS]

Steve Cheng's bolster-and-scale design

The UMa-05 combines carbon-fiber scales with titanium bolsters, giving the grip a distinct division of materials at the pivot. Steve Cheng's design uses a liner lock, ceramic-bearing pivot and an opening disk on the blade. Its longer folded format and narrow blade outline create a different proportion from TRIVISA's compact crossbar models.

Blade, handle and carrying size

• Blade: 3.63" S35VN stainless; black stonewash finish
• Handle: Twill carbon fiber
• Mechanism: Linerlock
• Pocket size: 4.88" (12.4cm) closed

Materials and cutting character

S35VN is a powder-metallurgy stainless steel developed to balance wear resistance with toughness. It gives this blade a useful combination of edge life and resistance to corrosion for everyday cutting.

The reverse-tanto profile angles the spine down toward the point while retaining a useful cutting edge beneath it. The result is a distinct tip geometry for controlled utility work.

Carbon fiber combines reinforcing fibers with resin, adding a visible layered or patterned character to the grip. The selected weave or inlay is part of this version’s appearance.

Linerlock explained

A spring section inside the handle moves behind the blade when it opens. Moving that liner aside releases the blade for folding, so the release is accessed inside the handle rather than through a separate external button.

Specifications