Collar drill bushing DIN 172 form A, bore 12 mm, length 12 mm, collar 22 mm, hardened steel
Made for holes of 12 mm, this bushing guides the tool over 12 mm. The short series combines a press fit of 18 mm outside diameter with a 22 mm collar that holds the bushing in the plate.
Benefits
- Bore 12 mm, ground and dimensionally accurate to DIN 172
- Overall length 12 mm in the short series
- Outside diameter 18 mm for the press fit in the drill plate
- Collar 22 mm with 4.0 mm height for axial location
- Case-hardening steel, hardened to 740 ± 80 HV 10 and ground
- Form A to DIN 172, the bore is rounded on the collar side so the tool enters easily
Technical data
| Property | Value |
|---|---|
| Bore diameter D1 | 12 mm |
| Overall length L1 | 12 mm |
| Series | short |
| Outside diameter D2 | 18 mm |
| Collar diameter D3 | 22 mm |
| Collar height L2 | 4.0 mm |
| Bore design | rounded on one side (form A) |
| Material | case-hardening steel, hardened and ground |
| Hardness | 740 ± 80 HV 10 |
| Standard | DIN 172 form A |
Applications
It is used wherever holes of 12 mm have to be produced without centre punching and without wandering, for example in jigs for series parts, in assembly gauges or in prototype work.
Standard and material
Dimensions and tolerances follow DIN 172 in form A. In form A the bore is rounded only on the side of the collar. The bushing is made of hardened and ground case-hardening steel with a hardness of 740 ± 80 HV 10.
| Weight | 0.016000 |
|---|---|
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | 172-12X12-A |
| EAN | 4050571984366 |
| Zolltarifnummer | 73269098 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Bauform | kurz |
| Bauform Bohrung | einseitig abgerundet (Form A) |
| Norm | DIN 172 |




