Connect a DeWalt DCS520 / DWS520 track saw port to a Makita 38 mm hose
How to join a DeWalt DCS520 / DWS520 track saw port to a Makita 38 mm hose, and what stops it leaking dust.
Not a direct fit. Joining the DeWalt DCS520 / DWS520 track saw port to a Makita 38 mm hose needs a 35 mm to 38 mm step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | DeWalt DCS520 / DWS520 track saw port (1-3/8 in OD, 35 mm OD) |
|---|---|
| End B | Makita 38 mm hose (1-1/2 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 35 mm to 38 mm step reducer |
Shop notes
Measured across the joint between the DeWalt DCS520 / DWS520 track saw port and the Makita 38 mm hose, the hose (38 mm) is 3 mm larger than the port (35 mm), so the port rattles inside without gripping. A 35 mm to 38 mm step reducer closes that 3 mm step so the two hold together instead of leaking at the gap.
A 3 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
Shop 35 mm to 38 mm step reducer on AmazonaffiliateFind 35 mm to 38 mm step reducer on eBayaffiliateRelated connections
- DeWalt DCS520 / DWS520 track saw port35 mm OD (EU convention)
- Makita 38 mm hose38 mm (1-1/2 in)
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- DeWalt miter saw dust elbow (1-1/2 in outer) to Makita 38 mm hosedirect fit
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