Introduction
The Naniwa HT-0001 Super Mom Whetstone is a dual-sided sharpening stone designed for efficient and easy sharpening of various cutting tools, including thin knives, scissors, and western knives. This manual provides comprehensive instructions for its proper use and maintenance to ensure optimal performance and longevity.

Image 1: Naniwa HT-0001 Super Mom Whetstone product packaging. The packaging displays the product name, model number, and key features in Japanese.
Product Features
- Dual-Sided Design: Features two distinct grit surfaces for different sharpening needs.
- Green Whetstone Surface (GC #220): For restoring sharpness to very dull blades.
- Beige Whetstone Surface (WA #800): For daily maintenance and refining the edge.
- Waterless Sharpening: Designed for use without water, preventing hands from getting dirty.
- Ergonomic Handle: Integrated handle for comfortable and secure grip during sharpening.

Image 2: The Naniwa HT-0001 Whetstone showing the green, coarse grit side. This side is used for initial sharpening of very dull blades.

Image 3: The Naniwa HT-0001 Whetstone showing the beige, fine grit side. This side is used for daily maintenance and refining the blade edge.
Operating Instructions
The Naniwa HT-0001 Whetstone is designed for dry sharpening. No water is required. Always ensure a stable grip on the whetstone and the item being sharpened.
1. Sharpening Scissors
- Open the scissors fully.
- Place the green (coarse) side of the whetstone against the inner bevel of one scissor blade.
- Maintain a consistent angle and gently push the whetstone along the blade from the pivot to the tip. Repeat this motion several times.
- Flip the whetstone to the beige (fine) side and repeat the process to refine the edge.
- Repeat for the other scissor blade.
- Test the sharpness. If needed, repeat the process.

Image 4: Detailed instructions from the product packaging showing the correct technique for sharpening scissors and knives. Note the specific angles and motions for each tool.
2. Sharpening Knives (Thin Knives, Western Knives)
- Hold the knife firmly with one hand.
- Place the green (coarse) side of the whetstone against the blade edge, ensuring a consistent sharpening angle (typically 15-20 degrees for most kitchen knives).
- With light pressure, push the whetstone along the blade from the heel to the tip, covering the entire edge. Repeat this motion several times on one side.
- Flip the knife and sharpen the other side of the blade using the same technique.
- Once the desired initial sharpness is achieved, switch to the beige (fine) side of the whetstone.
- Repeat the sharpening process with the fine grit side to refine the edge and remove any burrs.
- Test the sharpness. If needed, repeat the process.
Maintenance and Care
- After each use, wipe the whetstone clean with a dry cloth to remove any metal particles or debris.
- Store the whetstone in a dry place, away from direct sunlight or extreme temperatures.
- Avoid dropping the whetstone, as it may chip or break.
- Do not use water or oil with this whetstone, as it is designed for dry sharpening.
Troubleshooting
- Blade not getting sharp: Ensure you are maintaining a consistent sharpening angle. Start with the coarse (green) side if the blade is very dull.
- Whetstone surface wearing unevenly: Apply even pressure across the entire surface of the whetstone during sharpening.
- Difficulty holding the tool: Use a stable surface and ensure a firm grip on both the whetstone and the tool being sharpened.
Specifications
| Model Number | HT-0001 |
| Brand | Naniwa |
| Material | Carborundum Aluminum |
| Grit Type (Green Side) | GC (Green Carbonide) / #220 |
| Grit Type (Beige Side) | WA (Fusion Alumina) / #800 |
| Product Dimensions | 8.78"L x 1.73"W x 0.94"H (22.3 cm x 4.4 cm x 2.4 cm) |
| Whetstone Size (Each Side) | 3.9" x 1.2" x 0.1" (100 x 30 x 3 mm) |
| Item Weight | 0.1 Ounces (approx. 2.8 grams) |
| Color | Beige (whetstone), Brown (handle) |
| Manufacturer | Naniwa Abrasive Mfg. Co., Ltd. |
Contact and Support
For further assistance or inquiries regarding your Naniwa HT-0001 Super Mom Whetstone, please refer to the manufacturer's official website or contact their customer support. Specific warranty information may be available on the product packaging or manufacturer's website.
Note: No specific warranty or direct support contact information was provided in the product data.