Connect a DeWalt DWS779 / DWS780 miter saw port to a 2-1/2 in Ridgid / Craftsman locking hose
How to join a DeWalt DWS779 / DWS780 miter saw port to a 2-1/2 in Ridgid / Craftsman locking hose, and what stops it leaking dust.
Not a direct fit. Joining the DeWalt DWS779 / DWS780 miter saw port to a 2-1/2 in Ridgid / Craftsman locking hose needs a 1-5/8 in to 2-1/2 in step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | DeWalt DWS779 / DWS780 miter saw port (1-5/8 in OD, 41 mm OD) |
|---|---|
| End B | 2-1/2 in Ridgid / Craftsman locking hose (2-1/4 in OD, 2-1/4 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 1-5/8 in to 2-1/2 in step reducer |
Shop notes
Measured across the joint between the DeWalt DWS779 / DWS780 miter saw port and the 2-1/2 in Ridgid / Craftsman locking hose, the hose (57 mm) is 16 mm larger than the port (41 mm), so the port rattles inside without gripping. A 1-5/8 in to 2-1/2 in step reducer closes that 16 mm step so the two hold together instead of leaking at the gap.
A 16 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 1-5/8 in to 2-1/2 in step reduceraffiliate searchRelated connections
- DeWalt DWS779 / DWS780 miter saw port1-5/8 in OD (approx 41 mm)
- 2-1/2 in Ridgid / Craftsman locking hose2-1/2 in, cuff approx 2-1/4 in OD
- DeWalt DWS779 / DWS780 miter saw port to 1-1/4 in shop-vac hoseneeds a reducer
- DeWalt DWS779 / DWS780 miter saw port 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
- DeWalt DWS779 / DWS780 miter saw port to 4 in dust-collector hosenot compatible