Festool RTS 400 vs JET Jointer 4IN: specs compared
Updated 05 September 2026.
99 mm
JET Jointer 4IN wins on mating diameter
On mating diameter, JET Jointer 4IN leads: 99 mm versus 27 mm.
| Spec | Festool RTS 400 | JET Jointer 4IN |
|---|---|---|
| Port type | male spigot (hose goes over it) | male spigot (hose goes over it) |
| Outer diameter (OD) | 1-1/16 in, 27 mm | 3-15/16 in, 99 mm |
| Manufacturer designation | 27 mm (D27) hose port | 4 in collector port |
| Mating diameter (mm) | 27 | 99 |
| Inner diameter (ID) | 91 mm |
Questions and answers
Which has the higher mating diameter, Festool RTS 400 or JET Jointer 4IN?
On mating diameter, JET Jointer 4IN leads: 99 mm versus 27 mm.
How do Festool RTS 400 and JET Jointer 4IN compare?
On mating diameter, JET Jointer 4IN leads: 99 mm versus 27 mm.