KB by Kubey El Dorado Knife Blue Titanium, Silver Beadblasted M390 by Derek Sharon (KB469C)
- El Dorado Blue Titanium, Silver Beadblasted is a compact slip-joint folding knife designed by Derek Sharon. It features a Clip Point blade of powder steel M390 and a handle of durable titanium. It features a two-handed opening mechanism and a slip joint.
224,15 €KB by Kubey El Dorado Blue Titanium, Silver Beadblasted M390 Folding Knife by Derek Sharon (KB469C)
KB by Kubey El Dorado KB469C is a compact folding knife designed by Derek Sharon, combining a Böhler M390 steel blade with a blue titanium handle featuring fine Micro Milling. The design features a Slip Joint mechanism and a pivot mounted on phosphor bronze washers, preserving the classic character of an unlocked knife.
The 75.00 mm blade features a Clip Point profile, a flat grind, and a silver bead-blasted finish. It opens manually via a Nail Nick, which allows for two-handed operation.
Böhler M390 and Vacuum-Cryogenic Heat Treatment
The blade is made of Böhler M390 steel, hardened to 60–62 HRC. Vacuum hardening combined with cryogenic treatment was used, which promotes high hardness, wear resistance, and stable steel properties during regular use.
Clip Point, flat grind, and Silver Bead Blasted
The Clip Point profile provides a slim, well-controlled tip and a versatile cutting edge. The flat grind ensures smooth blade glide through the material, while the silver bead-blasted finish gives the blade a matte, subdued appearance.
Blue Titanium, Micro Milling, and Slip Joint
The handle is made of titanium and blue-anodized, and its surface features fine Micro Milling. The titanium backspacer and clip have a gray, sandblasted finish that contrasts with the anodized handle. The clip can be mounted on the right or left side in a tip-up configuration.
The Slip Joint mechanism does not use a traditional blade lock. Combined with the two-handed Nail Nick opening system, this design may be important in countries where knife-carrying regulations impose restrictions on locks or one-handed opening. It’s always a good idea to check local laws before carrying a knife.
Key Features at a Glance
- Böhler M390 — steel with a hardness of 60–62 HRC.
- Vacuum cryogenic treatment — enhances the steel’s high hardness, wear resistance, and stability.
- Clip Point — a versatile profile with a precise tip.
- Flat Grind — efficient cutting geometry.
- Silver Bead Blasted — matte silver blade finish.
- Blue Anodized Titanium — blue anodized handle.
- Micro Milling — fine milling of the handle surface.
- Slip Joint — a mechanism without a traditional blade lock.
- Phosphor Bronze Washers — pivot mounted on phosphor bronze washers.
- Nail Nick — manual, two-handed opening.
Technical Data
| Product Number | KB469C |
| Product Name | KB by Kubey El Dorado Blue Titanium, Silver Beadblasted M390 by Derek Sharon |
| Overall Length | 173.00 mm / 6.81“ |
| Blade length | 75.00 mm / 2.96” |
| Blade thickness | 3.10 mm / 0.12“ |
| Handle Length | 98.00 mm / 3.86” |
| Handle Thickness | 10.00 mm / 0.39" |
| Weight | 86.00 g / 3.04 oz |
| Blade material | Böhler M390 |
| Blade Hardness (HRC) | 60–62 HRC |
| Blade Grind | Flat |
| Blade Finish | Silver Bead Blasted |
| Handle material | Titanium |
| Handle finish color | Blue Anodized, Micro Milling |
| Backspacer material | Titanium |
| Backspacer color | Gray, Sandblasted |
| Clip | Right/left, tip-up |
| Backspacer material | Titanium |
| Pivot Pin | Phosphor Bronze Washers |
| Lock | Slip Joint |
| Opening Mechanism | Manual, Nail Nick |
| Additional Accessories | None |
| Designer | Derek Sharon |
| Brand | KB |
| Manufacturer | Kubey Knife |
| Country of Origin | P.R.C. |
Frequently Asked Questions
How do I care for Böhler M390 steel?
It’s a good idea to clean the blade regularly and dry it thoroughly. M390 has high corrosion resistance, but proper care helps maintain sharpness and the blade’s appearance for longer.
How do I sharpen the KB El Dorado?
High-performance abrasives, especially diamond ones, work well with M390 steel. It is best to guide the sharpener evenly and maintain the factory edge geometry.
What sharpening angle should be used for the KB El Dorado?
The recommended sharpening angle range is 15°–20°. This allows you to adjust the edge geometry to your preferred balance between cutting aggressiveness and blade durability.
How does the Slip Joint work?
The Slip Joint uses a spring-loaded mechanism that holds the blade in the open position but does not lock it with a traditional latch. Therefore, you must maintain control over the blade when closing it.
How to maintain a pivot with phosphor bronze washers?
It’s a good idea to keep the area around the pivot clean and periodically remove dust and small particles of dirt. If necessary, you can use a small amount of a cleaner designed for the pivot mechanism.
Prepared by: Specialists at Sharg® company – Your expert in EDC and cutting tools
