Connect a Bosch GTS 10 table saw port to a Makita 38 mm hose
How to join a Bosch GTS 10 table saw port to a Makita 38 mm hose, and what stops it leaking dust.
Not a direct fit. Joining the Bosch GTS 10 table saw port to a Makita 38 mm hose needs a 63 mm to 38 mm 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 | Makita 38 mm hose (1-1/2 in ID) |
| Fit type | male port into hose cuff |
| Reducer needed | 63 mm to 38 mm step reducer |
Shop notes
Measured across the joint between the Bosch GTS 10 table saw port and the Makita 38 mm hose, the port (63 mm) is 25 mm larger than the hose (38 mm), so it will not seat. A 63 mm to 38 mm step reducer closes that 25 mm step so the two hold together instead of leaking at the gap.
A 25 mm mismatch feels close enough to force, and it will hold for a minute before it works loose under airflow. Fit the step ring rather than trusting friction on a gap this size.
The reducer to buy
Shop 63 mm to 38 mm step reducer on AmazonaffiliateFind 63 mm to 38 mm step reducer on eBayaffiliateRelated connections
- Bosch GTS 10 table saw port63 mm rear port, adapter 57 mm OD saw / 39 mm OD vac
- Makita 38 mm hose38 mm (1-1/2 in)
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