Komaki City, Mar 2026

Dear Valued Customer,
Please be advised that the exterior color of NTK toolholders will be changed from black to silver due to improvements in our surface treatment process.

Details of the change

• Applicable Products: All NTK toolholders (excluding the products listed below).
  
• Description of Change: As a result of updates to the surface treatment process, the exterior color will be changed from black to silver.

Please note that the product name and order code will remain unchanged.

Note:
The transition to the new color will be implemented gradually across product series, and the timing may vary depending on the item.

Implementation Schedule

Starting in April 2026, the transition will be implemented progressively, beginning with:

• PTX type (automatic lathe toolholders for TNGG), and
• Internal boring toolholders.

Products Not affected

1. Custom-made products

2. Sleeves for internal machining (e.g., HY-NBH-OH, HY-NBH, NBH series)

3. Rotary tool protection unit DS sleeves (e.g., SS-DSU series)

If you have any questions or need further information, please feel free to contact us.