CONNECTION
Connect a Bosch ROS20 random-orbit sander port to a Karcher NT 35 mm hose
How to join a Bosch ROS20 random-orbit sander port to a Karcher NT 35 mm hose, and what stops it leaking dust.
Direct fit
These connect directly. A Karcher NT 35 mm hose seats on the Bosch ROS20 random-orbit sander port with no reducer.
END A35 mmBosch ROS20 random-orbit sander port (1-3/8 in OD, 35 mm OD)
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Bosch ROS20 random-orbit sander port (1-3/8 in OD, 35 mm OD) |
|---|---|
| End B | Karcher NT 35 mm hose (1-3/8 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | none, direct friction fit |
Shop notes
The port measures about 35 mm and the hose about 35 mm, the same, so the port seats inside the hose as a friction fit. No reducer is needed for this pairing, so the Bosch ROS20 random-orbit sander port and the Karcher NT 35 mm hose connect directly.
It is a push fit, not a lock. Seat it fully and check it has not crept loose after a few minutes of vibration before you trust it on fine dust.
Related connections
- Bosch ROS20 random-orbit sander port35 mm OD (EU convention)
- Karcher NT 35 mm hose35 mm (1-3/8 in)
- DeWalt DWS779 / DWS780 miter saw port to Karcher NT 35 mm hoseneeds a reducer
- DeWalt miter saw dust elbow (1-1/2 in outer) to Karcher NT 35 mm hoseneeds a reducer
- DeWalt random-orbit sander stepped port to Karcher NT 35 mm hosedirect fit
- 35 mm EU power-tool port (DeWalt / Bosch / Makita) to Karcher NT 35 mm hosedirect fit