Naniwa Dup 09 Ccd E 18 Hot – Must Try
The "E 18" impact modification is crucial here: glass-filled Nylons are brittle, but the elastomer additive prevents catastrophic failure under sudden shock or vibration—common in moving vehicles.
Due to the cult status of this stone, Chinese counterfeiters have begun printing "DUP 09 CCD" on generic silicon carbide stones. Here is how to authenticate your stone.
| Feature | Genuine Naniwa | Fake / Generic | | :--- | :--- | :--- | | Color | Pale olive green with dark grey speckles (the ceramic chips). | Uniform light grey or bright green. | | Smell | Distinct, mild sulfur/clay smell when wet. | Chemical or odorless. | | Surface Texture | Smooth like glass, but with visible hard "dots" (CCD chips). | Sandy or porous. | | Water Behavior | Water beads up for 3-5 seconds before absorbing. | Water soaks in instantly (too porous) or runs off (too sealed). | | Cutting Feedback | "Hot" variant produces a gritty, singing sound. | Silent, muddy, or sticky. |
The "Hot" designation isn't just marketing. During heavy stock removal, a standard water stone will heat up unevenly, causing the binder to swell and water to evaporate, leading to clogging. The E 18 binder dissipates heat so efficiently that knife makers use this stone dry (though not recommended) for quick touch-ups without warping thin blades. naniwa dup 09 ccd e 18 hot
The string "ccd e 18 hot" refers to a specific system error encountered during the operation of the Naniwa DUP-09.
1. Error Breakdown
2. Meaning of the Error The error message "CCD E 18 HOT" indicates that the internal temperature sensors have detected that the CCD camera imaging system is overheating. The "E 18" impact modification is crucial here:
3. Potential Causes
4. Troubleshooting & Solutions
This is not a general-purpose stone for a home cook or a pocket knife enthusiast. The Naniwa DUO 09 CCD E 18 Hot is a specialist tool primarily used in: tool-and-die shops shutting down
Using a heated stone sounds like a gimmick, but there is actual tribology (the study of friction) at play:
You will not find this stone at a big-box retailer. The DUP 09 CCD E 18 Hot is usually salvaged from Japanese industrial liquidations, tool-and-die shops shutting down, or NOS (New Old Stock) eBay listings. Its popularity stems from three specific performance metrics: