Collar drill bushing DIN 172 form B, bore 4 mm, length 12 mm, collar 10 mm, hardened steel
When drilling in jigs, this bushing keeps the 4 mm tool on position. The guiding length is 12 mm, the press fit measures 7 mm in diameter and the collar 10 mm.
Benefits
- Overall length 12 mm in the medium series
- Bore 4 mm, ground and dimensionally accurate to DIN 172
- Collar 10 mm with 2.5 mm height for axial location
- Outside diameter 7 mm for the press fit in the drill plate
- Case-hardening steel, hardened to 740 ± 80 HV 10 and ground
- Form B to DIN 172, the bore is rounded on both sides and can be loaded from either end
Technical data
| Property | Value |
|---|---|
| Bore diameter D1 | 4 mm |
| Overall length L1 | 12 mm |
| Series | medium |
| Outside diameter D2 | 7 mm |
| Collar diameter D3 | 10 mm |
| Collar height L2 | 2.5 mm |
| Bore design | rounded on both sides (form B) |
| Material | case-hardening steel, hardened and ground |
| Hardness | 740 ± 80 HV 10 |
| Standard | DIN 172 form B |
Applications
It suits drilling jigs, drill templates and assembly fixtures in which the tool has to be guided safely over 12 mm, even with frequent tool changes.
Standard and material
The basis is DIN 172, form B, with a guiding bore of 4 mm. In form B the bore is rounded on the opposite side as well. The material is case-hardening steel, hardened to 740 ± 80 HV 10 and ground afterwards.
| Weight | 0.003100 |
|---|---|
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | 172-4X12-B |
| EAN | 4050571990411 |
| 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 | beidseitig abgerundet (Form B) |
| Norm | DIN 172 |




