Bosch Gcm12 vs Bosch Gts1031: specs compared
Updated 05 September 2026.
51 mm
Bosch Gts1031 wins on mating diameter
On mating diameter, Bosch Gts1031 leads: 51 mm versus 32 mm.
| Spec | Bosch Gcm12 | Bosch Gts1031 |
|---|---|---|
| Port type | female socket (hose goes into it) | male spigot (hose goes over it) |
| Inner diameter (ID) | 1-1/4 in, 32 mm | |
| Manufacturer designation | rear approx 1-1/4 in ID (32 mm) | 2 in dust port |
| Mating diameter (mm) | 32 | 51 |
| Outer diameter (OD) | 2 in, 51 mm |
Questions and answers
Which has the higher mating diameter, Bosch Gcm12 or Bosch Gts1031?
On mating diameter, Bosch Gts1031 leads: 51 mm versus 32 mm.
How do Bosch Gcm12 and Bosch Gts1031 compare?
On mating diameter, Bosch Gts1031 leads: 51 mm versus 32 mm.