Collar drill bushing DIN 172 form B, bore 9.1 mm, length 20 mm, collar 18 mm, hardened steel
This bushing of the medium series guides drills of 9.1 mm diameter over 20 mm. The collar with 3.0 mm height stops the bushing from being pushed down through the holder during machining and sets its height clearly.
Benefits
- Guiding length of 20 mm, medium design
- Press fit of 15 mm outside diameter in the holder of the jig
- Ground guiding bore of 9.1 mm within the tolerances of DIN 172
- Form B design of DIN 172 with the bore rounded on both sides, also for a reversed fit
- All-round collar of 18 mm diameter and 3.0 mm height acting as a stop
- Hardened case-hardening steel at 740 ± 80 HV 10 with a ground surface
Technical data
| Property | Value |
|---|---|
| Bore diameter D1 | 9.1 mm |
| Overall length L1 | 20 mm |
| Series | medium |
| Outside diameter D2 | 15 mm |
| Collar diameter D3 | 18 mm |
| Collar height L2 | 3.0 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
The bushing is used in drilling jigs in tool and fixture making, in series production and in repair work where holes have to be placed repeatably.
Standard and material
Dimensions and tolerances follow DIN 172 in form B. In form B the bore is rounded on the opposite side as well. The bushing is made of hardened and ground case-hardening steel with a hardness of 740 ± 80 HV 10.
| Weight | 0.019000 |
|---|---|
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | 172-9,1X20-B |
| EAN | 4050571992897 |
| 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 |




