Half rounded needle file for watchmaking, jewellery making and engraving
4074-16 FIN.- Unbreakable. File forged in a single piece and manufactured in steel and chrome. Heat treated.
- For the best finish. Uniform teeth for the best results.
- Essential for meticulous work of watchmakers, jewellers and engravers. Can be fitted to the bi-material handle.
For watchmaking, jewelry and engraving works.
Description
Needle professional half rounded file, forged in steel, sturdy with high wear resistance. Perfectly ground blade, with double serration for high stock removal capacity and stability over time. Uniform teeth for uniform results and a better filing feel. Choice of three types of toothing: Fine (good finish), Medium (medium finish) and Coarse depending on the finish required and the material to be processed. Option of adding a handle that facilitates the work, reduces vibrations and allows for greater precision in filing. For precision work, fine-tuning, dressing and finishing of small shapes, watchmaking, jewellery and engraving.
Comparative
Half rounded needle file for watchmaking, jewellery making and engraving
| 40740 | 40742 | 40743 | |
|---|---|---|---|
| Blade length (in inches) | 6 / 160 | 6 / 160 | 6 / 160 |
| File type | Needle file | Needle file | Needle file |
| Blade geometry | Half rounded | Half rounded | Half rounded |
| Toothing type | Coarse | Medium fine | Fine |
| Teeth per 10mm | 20 | 28 | 38 |
| Blade width (in mm) | 2 | 2 | 2 |
| Blade thickness (in mm) | 5.5 | 5.5 | 5.5 |
| Toothed faces | 2 | 2 | 2 |
| Replacement handles | - | - | - |
| Material to work on | Steels with a tensile strength over 1,200 N/ mm136. | Steels with a tensile strength over 1,200 N/ mm137. | Steels with a tensile strength over 1,200 N/ mm138. |
| Usage | For watchmaking, jewelry and engraving works. | For watchmaking, jewelry and engraving works. | For watchmaking, jewelry and engraving works. |
| Dimensiones | 2 x 160 x 5.5 mm | 2 x 160 x 5.5 mm | 2 x 160 x 5.5 mm |
| Peso | 0.01 kg | 0.01 kg | 0.01 kg |