Connect a Bosch GTS 10 table saw port to a 1-1/4 in shop-vac hose
How to join a Bosch GTS 10 table saw port to a 1-1/4 in shop-vac hose, and what stops it leaking dust.
Not compatible without stepping down. A 1-1/4 in shop-vac hose is far larger than the Bosch GTS 10 table saw port, so it needs a 63 mm to 1-1/4 in step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Bosch GTS 10 table saw port (2-1/2 in OD, 63 mm OD) |
|---|---|
| End B | 1-1/4 in shop-vac hose (approx 1-1/2 cuff in OD, 1-1/4 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 63 mm to 1-1/4 in step reducer |
Shop notes
The hose is about 32 mm and the port about 63 mm, a gap of 31 mm, so the port simply swallows the hose with no contact. A 63 mm to 1-1/4 in step reducer is needed, and even reduced the airflow is mismatched between the Bosch GTS 10 table saw port and the 1-1/4 in shop-vac hose.
Wrapping tape to close a 31 mm gap never seals cleanly and chokes the airflow further. Step the sizes properly, or pair each end with a fitting closer to its own size.
The reducer to buy
Search Amazon for 63 mm to 1-1/4 in step reduceraffiliate searchRelated connections
- Bosch GTS 10 table saw port63 mm rear port, adapter 57 mm OD saw / 39 mm OD vac
- 1-1/4 in shop-vac hose1-1/4 in (approx 32 mm)
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