PortMatchMatch any tool dust port to any shop-vac or collector hose, with the exact reducer

These connect directly. A Makita 38 mm hose seats on the DeWalt DWE7491RS blade-guard port with no reducer. Measured OD and ID of each end, the real-world trap, and the exact reducer to buy.

Updated 05 September 2026.

CONNECTION

Connect a DeWalt DWE7491RS blade-guard port to a Makita 38 mm hose

How to join a DeWalt DWE7491RS blade-guard port to a Makita 38 mm hose, and what stops it leaking dust.

Direct fit

These connect directly. A Makita 38 mm hose seats on the DeWalt DWE7491RS blade-guard port with no reducer.

END A38 mmDeWalt DWE7491RS blade-guard port (1-1/2 in OD, 38 mm OD)

Rings drawn to scale from the measured diameters in the table below.

The two ends

End ADeWalt DWE7491RS blade-guard port (1-1/2 in OD, 38 mm OD)
End BMakita 38 mm hose (1-1/2 in ID)
Fit typemale port into hose cuff
Reducer needednone, direct friction fit

Shop notes

The port measures about 38 mm and the hose about 38 mm, the same, so the port seats inside the hose as a friction fit. No reducer is needed for this pairing, so the DeWalt DWE7491RS blade-guard port and the Makita 38 mm hose connect directly.

It is a push fit, not a lock. Seat it fully and check it has not crept loose after a few minutes of vibration before you trust it on fine dust.

Questions and answers

Connect a DeWalt DWE7491RS blade-guard port to a Makita 38 mm hose?

These connect directly. A Makita 38 mm hose seats on the DeWalt DWE7491RS blade-guard port with no reducer.