Connect a Bosch 35 mm tool port to a Festool D50 antistatic hose
How to join a Bosch 35 mm tool port to a Festool D50 antistatic hose, and what stops it leaking dust.
Not a direct fit. Joining the Bosch 35 mm tool port to a Festool D50 antistatic hose needs a 35 mm to 50 mm step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Bosch 35 mm tool port (1-3/8 in OD, 35 mm OD) |
|---|---|
| End B | Festool D50 antistatic hose (1-15/16 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 35 mm to 50 mm step reducer |
Shop notes
Measured across the joint between the Bosch 35 mm tool port and the Festool D50 antistatic hose, the hose (50 mm) is 15 mm larger than the port (35 mm), so the port rattles inside without gripping. A 35 mm to 50 mm step reducer closes that 15 mm step so the two hold together instead of leaking at the gap.
A 15 mm mismatch feels close enough to force, and it will hold for a minute before it works loose under airflow. Fit the step ring rather than trusting friction on a gap this size.
The reducer to buy
Search Amazon for 35 mm to 50 mm step reduceraffiliate searchRelated connections
- Bosch 35 mm tool port35 mm OD
- Festool D50 antistatic hose50 mm nominal (1-15/16 in)
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