Trivisa Hummingbird Pro-IW YZ05-IW-M M390 Blade Ironwood Handle Liner Lock Folding Knife

The Trivisa Hummingbird Pro-IW YZ05-IW-M folding knife combines a compact profile with refined materials for everyday carry and outdoor use. Its 2.9-inch M390 stainless-steel blade features a stain-finished swedge design and 60±2HRC hardness. M390 is valued for wear resistance, corrosion resilience, and edge retention; its hardness can make sharpening more demanding, while heavy lateral stress may risk chipping. A natural ironwood handle adds distinctive character, and the liner lock secures the blade open. Ceramic ball bearings support smooth deployment. Measuring 6.9 inches overall and weighing 2.69 ounces, this knife is easy to carry. Its 3.8-inch closed length and 0.13-inch blade thickness make it a portable choice for EDC, hiking, camping, fishing, hunting, and other outdoor activities.

M390 Blade Introduction

M390 is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.

Specification

Designer:TRIVISA Team
Style:Swedge
Blade Material: M390 Steel Blade
Blade Finished: Stain Finished
Handle Material:Ironwood Handle
Lock Style:Liner Lock
Hardness:60±2HRC
Bearing:Ceramic Ball Bearing

Size:
Overall length-6.9"(170.9mm)
Blade length-2.9"(75.3mm)
Closed length-3.8"(95.6mm)
Blade width-0.87''(22mm)
Blade thickness-0.13''(3.2mm)
Net Weight:2.69oz(76.3g)

Usage:Outdoor survival,EDC,hunting,fishing, hiking and camping