Connect a 35 mm EU power-tool port (DeWalt / Bosch / Makita) to a Festool D27 antistatic hose
How to join a 35 mm EU power-tool port (DeWalt / Bosch / Makita) to a Festool D27 antistatic hose, and what stops it leaking dust.
Not a direct fit. Joining the 35 mm EU power-tool port (DeWalt / Bosch / Makita) to a Festool D27 antistatic hose needs a 35 mm to 27 mm step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | 35 mm EU power-tool port (DeWalt / Bosch / Makita) (1-3/8 in OD, 35 mm OD) |
|---|---|
| End B | Festool D27 antistatic hose (35 mm tip in OD, 7/8 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 35 mm to 27 mm step reducer |
Shop notes
Measured across the joint between the 35 mm EU power-tool port (DeWalt / Bosch / Makita) and the Festool D27 antistatic hose, the port (35 mm) is 12 mm larger than the hose (23 mm), so it will not seat. A 35 mm to 27 mm step reducer closes that 12 mm step so the two hold together instead of leaking at the gap.
A 12 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 27 mm step reduceraffiliate searchRelated connections
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