Metal products on the surface of the inevitable small scratches and mold marks, polishing traces, this is a normal phenomenon.
M390 Titanium Knuckle Duster Pocket Tool
Original price was: €276.00.€145.00Current price is: €145.00.
Description
- Made of TC4 Titanium Alloy Ring with M390 Steel Blade
- Upgraded Design with Detachable Blade and Tailbone, Wearable as a Pure Finger Ring
- Blade Material: M390 Steel, Vacuum Heat Treated, 61HRC Hardness
- Glass Bead Tip Made of Ceramic Ball, Durable and Practical
- Spindle Material: HSS High-Speed Steel
- Tritium Slot Size: 1.5 x 6mm, Supports Custom Tritium Installation
- Ring Sizes Available:
No.09 – Inner Diameter 18.9mm
No.10 – Inner Diameter 19.7mm
No.11 – Inner Diameter 20.6mm
No.12 – Inner Diameter 21.4mm
No.13 – Inner Diameter 22.2mm
- Titanium Color Options: Natural, Blue, Black
- Compact and Stylish Defense Mini Finger Ring Tiger, Lightweight and Functional
Surface Notes
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M390 Titanium Knuckle Duster Pocket Tool
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1-2 of 2 reviews

Titanium alloy feels solid. The detachable blade and tritium slot make it highly functional.
Durable titanium, sharp M390 blade, and compact design. Practical for self-defense and everyday use.