Delta Planer 4IN vs Festool 27: 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 27 mm.
| Spec | Delta Planer 4IN | Festool 27 |
|---|---|---|
| Port type | male spigot (hose goes over it) | male spigot (hose goes over it) |
| Outer diameter (OD) | 3-15/16 in, 99 mm | 1-1/16 in, 27 mm |
| Inner diameter (ID) | 91 mm | |
| Manufacturer designation | 4 in port with 2-1/2 in reducer | 27 mm nominal, hose tip 23 mm ID / 35 mm OD |
| Mating diameter (mm) | 99 | 27 |
Questions and answers
Which has the higher mating diameter, Delta Planer 4IN or Festool 27?
On mating diameter, Delta Planer 4IN leads: 99 mm versus 27 mm.
How do Delta Planer 4IN and Festool 27 compare?
On mating diameter, Delta Planer 4IN leads: 99 mm versus 27 mm.