SRM Rubik 3.43" Laminated 140Cr Drop Point Crossbar Lock Folding Knife – Micarta Handle (7228B-ME2)

The SRM Rubik 7228B-ME2 is a rugged, purpose-built EDC knife designed for real-world reliability—whether you’re opening packages, slicing cordage, prepping kindling, or handling emergency tasks. At the heart of the Rubik is a 3.43" laminated 140Cr drop point blade hardened to HRC 61–63, delivering edge retention and toughness comparable to premium steels like S35VN.

The blade’s bead-blast finish reduces glare and hides wear, while SRM’s cooled sharpening process preserves heat treatment for a sharper, longer-lasting edge. Opening is fast and intuitive via thumb studs, riding on a ceramic ball-bearing pivot for smooth, controlled action.

A standout feature is SRM’s Ambi Lock (Crossbar Lock) paired with an ambidextrous pocket clip, making the Rubik fully left- or right-hand friendly. Inside, SRM’s Mono-Chassis liner reinforces the handle for greater structural integrity and consistent lock operation. The Micarta handle scales provide a warm, secure grip that excels in wet or gloved conditions.

Built for daily carry and outdoor utility alike, the Rubik balances tactical capability with everyday practicality—strong, smooth, and ready wherever you go.

Specifications

Key Features

• 3.43" laminated 140Cr drop point blade – premium edge retention and toughness

• HRC 61–63 hardness – performance comparable to S35VN

• Ambi crossbar lock – safe, one-handed operation for left or right hand

• Thumb stud deployment – fast, intuitive opening

• Ceramic ball-bearing pivot – smooth, consistent action

• Micarta handle scales – secure grip in wet or dry conditions

• Mono-Chassis liner – reinforced internal structure for long-term durability

• Ambidextrous pocket clip – flexible carry for any user

• Bead-blast blade finish – low glare and wear-resistant appearance