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DeWalt miter saw dust elbow (1-1/2 in outer) dust port size

The measured dimensions of the DeWalt miter saw dust elbow (1-1/2 in outer) and the hose sizes it mates with.

OD38 mm1-1/2 in, 38 mm

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

Measured port dimensions

Port typemale spigot (hose goes over it)
Outer diameter (OD)1-1/2 in, 38 mm
Manufacturer designation1-1/2 in outer, 1-3/8 in inner

Shop notes

Found on: DeWalt corded and cordless miter saws that ship with the black dust elbow, per DeWalt support.

DeWalt support states the miter-saw dust duct is 1-1/2 in on the outside, so a 1-1/2 in hose slips over it, and 1-3/8 in on the inside, so a 1-1/4 in hose slips inside it. That dual dimension is why some owners connect a hose over the port and others push one into it.