Drill bush DIN 179 form A, medium type, bore 4.4 mm, length 12 mm, outside dia 8 mm
For repeatable holes of 4.4 mm diameter this bush is seated in the drill plate by its ground outside diameter of 8 mm. The drill stays guided across 12 mm of length, and the bore is rounded on one side.
Benefits
- Guide bore of 4.4 mm to DIN 179 for the matching tool
- Outside diameter of 8 mm as a ground seat in the drill plate
- Bore rounded on one side to form A, with a fixed fitting direction in the jig
- Special case-hardening steel, hardened to 740 ± 80 HV 10 and ground
Technical data
| Feature | Value |
|---|---|
| Bore diameter D1 [mm] | 4.4 |
| Overall length L1 [mm] | 12 |
| Design | medium |
| Outside diameter D2 [mm] | 8 |
| Bore design | rounded on one side (form A) |
| Material | Special case-hardening steel |
| Hardness | 740 ± 80 HV 10 |
| Treatment | hardened and ground |
| Standard | DIN 179 |
Applications
- Fixed drill plates and hinged drilling jigs
- One-off and small batch production in mechanical engineering
- Drilling fitted holes on assemblies with a fixed hole position
- Inspection and marking templates in assembly
Standard and material
Dimensions and design follow DIN 179. The material is special case-hardening steel, the hardness is 740 ± 80 HV 10, and the functional surfaces are ground.
| Weight | 0.003200 |
|---|---|
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | 179-4,4X12-A |
| EAN | 4070497002012 |
| Zolltarifnummer | 73269098 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Bauform | mittel |
| Bauform Bohrung | einseitig abgerundet (Form A) |
| Norm | DIN 179 |



