Connect a Festool 36 mm (D36) tool port to a 1-7/8 in shop-vac hose
How to join a Festool 36 mm (D36) tool port to a 1-7/8 in shop-vac hose, and what stops it leaking dust.
Not a direct fit. Joining the Festool 36 mm (D36) tool port to a 1-7/8 in shop-vac hose needs a 36 mm to 1-7/8 in step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Festool 36 mm (D36) tool port (1-3/4 in OD, 44 mm OD) |
|---|---|
| End B | 1-7/8 in shop-vac hose (1-7/8 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 36 mm to 1-7/8 in step reducer |
Shop notes
Measured across the joint between the Festool 36 mm (D36) tool port and the 1-7/8 in shop-vac hose, the hose (48 mm) is 4 mm larger than the port (44 mm), so the port rattles inside without gripping. A 36 mm to 1-7/8 in step reducer closes that 4 mm step so the two hold together instead of leaking at the gap.
A 4 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 36 mm to 1-7/8 in step reduceraffiliate searchRelated connections
- Festool 36 mm (D36) tool port36 mm nominal, hose tip 38 mm ID / 44 mm OD
- 1-7/8 in shop-vac hose1-7/8 in (approx 48 mm)
- Festool 36 mm (D36) tool port to Festool 27 mm (D27) tool portneeds a reducer
- Festool 36 mm (D36) tool port to 2-1/2 in shop-vac hoseneeds a reducer
- 1-7/8 in shop-vac hose to 2-1/2 in shop-vac hoseneeds a reducer
- DeWalt DWS779 / DWS780 miter saw port to 1-7/8 in shop-vac hoseneeds a reducer