Benchmade 5400SBK Serum AXIS Dual-Action AUTO 3.47" Black Combo Blade, G10

AXIS Dual-Action Technology Meets Tactical Performance

The Benchmade 5400SBK Serum combines proven AXIS lock engineering with dual-action automatic deployment. This tactical folder operates manually like a traditional AXIS lock knife, or automatically by pulling the AXIS bar further down. The 154CM stainless steel blade delivers reliable edge retention and corrosion resistance for demanding field use.

Key Features

• AXIS Dual-Action Mechanism: Manual or automatic deployment with ambidextrous operation
• 154CM Stainless Steel Blade: Heat-treated to 58-60 HRC for optimal hardness and toughness balance
• Modified Drop-Point Design: Versatile blade geometry for cutting and piercing tasks
• G10 Handle Construction: Black machined scales with full stainless steel liners for durability
• Reversible Pocket Clip: Tip-up carry configuration adapts to left or right-hand preference

Specifications

Frequently Asked Questions

How does the dual-action mechanism work?

The AXIS bar functions as a manual lock when pulled normally. Pull it further down to trigger automatic blade deployment. This gives you both manual control and automatic speed in one mechanism.

What makes 154CM steel suitable for tactical use?

154CM offers balanced performance with good toughness from its molybdenum content, plus solid edge retention and corrosion resistance. The 58-60 HRC heat treatment optimizes hardness without sacrificing durability.

Can the pocket clip be configured for left-hand carry?

Yes, the reversible tip-up pocket clip can be repositioned for either left or right-hand carry preference.

What is the overall length when opened and closed?

The knife measures 8.09 inches open and 4.70 inches closed, making it a substantial tactical folder that still carries comfortably.

Is this knife legal to carry?

Automatic knives have varying legal restrictions by state and locality. Check your local and state laws before carrying any automatic opening knife.