The Extrema Ratio RAO Steel translates the tactical DNA of the RAO folder into a fixed-blade, no-nonsense tool for trekking, survival and camp tasks. The 5 mm full-tang Böhler N690 blade delivers rigidity and work capability for wood processing, cordage and field chores; the Dark Stone treatment minimizes reflections and conceals wear. The skeletonized handle accepts custom paracord wraps to tailor grip; a rear lanyard hole eases secure handling and rapid extraction. Ambidextrous Kydex sheath with dual belt loops and snap closures provides flexible carry options and quick mounting. Compact, capable and built to endure, the Extrema Ratio RAO Steel is targeted at users who require a practical, reliable blade in the field.

TECHNICAL SPECIFICATIONS

Blade steel: Böhler N690, ~58 HRC.

Blade thickness: 5 mm.

Blade length: 87 mm.

Overall length: 190 mm.

Weight: ≈130 g.

Edge grind: flat.

Construction: full-tang, skeletonized handle for paracord.

Finish: Dark Stone (stone-washed / specific treatment).

Sheath: ambidextrous Kydex with dual belt loops and snap closures; compatible with multiple mounting systems.

Recommended use: trekking, camping, survival, fieldwork.

PACKAGE CONTENTS

Extrema Ratio RAO Steel N690 Dark Stone (5 mm full-tang)

Ambidextrous Kydex sheath with dual belt loops and snaps

Packaging and basic documentation

USER BENEFITS
A field-ready, straightforward blade: stout 5 mm geometry for cutting and light chopping, low-profile finish to hide wear, and a flexible sheath system for fast deployment. Small footprint and low weight make it a reliable support knife for outdoor and survival scenarios.

SAFETY & USAGE NOTES (GPSR / Italian compliance)

Minimum purchase age in Italy: 18 years.

Intended use: use only for cutting, camp chores, shelter construction and field tasks; not to be used as pry bar, hammer, chisel or for improper uses.

Carry/transport: ensure sheath is properly mounted; check snaps and attachments prior to activity; comply with local carry laws.

Maintenance: wipe blade with a soft cloth; dry thoroughly before storage; apply light oil to prevent corrosion; avoid aggressive cleaners on Kydex.

Storage: store dry and away from excessive heat; keep out of reach of children.

Tampering prohibited: do not disassemble, modify or tamper with any part; unauthorized changes void warranty and may compromise safety.

If deformation, damage or malfunction occurs, cease use and consult qualified service.

Dispose of packaging and metal parts according to local regulations.