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DW Miter 779 vs Delta Planer 4IN: specs compared

Updated 05 September 2026.

99 mm
Delta Planer 4IN wins on mating diameter

On mating diameter, Delta Planer 4IN leads: 99 mm versus 41 mm.

SpecDW Miter 779Delta Planer 4IN
Port typemale spigot (hose goes over it)male spigot (hose goes over it)
Outer diameter (OD)1-5/8 in, 41 mm3-15/16 in, 99 mm
Manufacturer designation1-5/8 in OD (approx 41 mm)4 in port with 2-1/2 in reducer
Mating diameter (mm)4199
Inner diameter (ID)91 mm

Questions and answers

Which has the higher mating diameter, DW Miter 779 or Delta Planer 4IN?

On mating diameter, Delta Planer 4IN leads: 99 mm versus 41 mm.

How do DW Miter 779 and Delta Planer 4IN compare?

On mating diameter, Delta Planer 4IN leads: 99 mm versus 41 mm.

Compared here

DeWalt DWS779 / DWS780 miter saw port dust port sizeDelta 22-590 planer 4 in port dust port size