Used as a base for adjusting the watch hairspring or balance; has 11 holes. Measures 1-3/8" x 3/8" (35mm x 10mm) made of Delrin so it won't scratch or mar your work. Made in Switzerland.
- 11 holes from 0.50 to 2.70mm
- Holds hairsprings and balance
- Made of Delrin
- Swiss made