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Drum Sander 4IN vs Fein 30mm: specs compared

Updated 05 September 2026.

99 mm
Drum Sander 4IN wins on mating diameter

On mating diameter, Drum Sander 4IN leads: 99 mm versus 30 mm.

SpecDrum Sander 4INFein 30mm
Port typemale spigot (hose goes over it)male spigot (hose goes over it)
Outer diameter (OD)3-15/16 in, 99 mm1-3/16 in, 30 mm
Inner diameter (ID)91 mm
Manufacturer designation4 in port, 3.9 in OD / 3.6 in ID30 mm OD (Fein small-tool port)
Mating diameter (mm)9930

Questions and answers

Which has the higher mating diameter, Drum Sander 4IN or Fein 30mm?

On mating diameter, Drum Sander 4IN leads: 99 mm versus 30 mm.

How do Drum Sander 4IN and Fein 30mm compare?

On mating diameter, Drum Sander 4IN leads: 99 mm versus 30 mm.

Compared here

Drum sander 4 in dust port dust port sizeFein 30 mm tool port dust port size