For sale are 2-flute microdrills for jewelers, wathmakers and fine works, New Old Stock.
Price is $10 for 5 drill bits of any size.
Shank is 1.2mm. (measured 1.19mm. in average).
Genuine photos of drill bits which are listed.
Made with HSS (R6M5 soviet grade) similar to M2 steel (X82WMoCrV6-5-4), here's typical chemical stats for this steel:
| C | Si | Mn | Ni | S | P | Cr | Mo | W | V | Co | Cu |
| 0.82 - 0.9 | 0.2 - 0.5 | 0.2 - 0.5 | under 0.6 | under 0.025 | under 0.03 | 3.8 - 4.4 | 4.8 - 5.3 | 5.5 - 6.5 | 1.7 - 2.1 | under 0.5 | under 0.25 |
There are traces of preservative (not rust).
Please ask any questions or additional photos/measurements of needed size.