Connect a Makita LS1219 miter saw port to a 2-1/2 in shop-vac hose
How to join a Makita LS1219 miter saw port to a 2-1/2 in shop-vac hose, and what stops it leaking dust.
Not a direct fit. Joining the Makita LS1219 miter saw port to a 2-1/2 in shop-vac hose needs a 1-3/8 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 | Makita LS1219 miter saw port (1-3/8 in ID) |
|---|---|
| End B | 2-1/2 in shop-vac hose (2-1/4 in OD, 2-1/4 in ID) |
| Fit type | hose cuff into female socket |
| Reducer needed | 1-3/8 in to 2-1/2 in step reducer |
Shop notes
Measured across the joint between the Makita LS1219 miter saw port and the 2-1/2 in shop-vac hose, the hose tip (57 mm) is 22 mm larger than the port socket (35 mm), so it will not seat. A 1-3/8 in to 2-1/2 in step reducer closes that 22 mm step so the two hold together instead of leaking at the gap.
A 22 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 1-3/8 in to 2-1/2 in step reducer on AmazonaffiliateFind 1-3/8 in to 2-1/2 in step reducer on eBayaffiliateRelated connections
- Makita LS1219 miter saw portapprox 1-3/8 in ID (35 mm)
- 2-1/2 in shop-vac hose2-1/2 in nominal, cuff approx 2-1/4 in OD
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