Connect a Dremel Multi-Max dust port to a 2-1/2 in Craftsman locking hose
How to join a Dremel Multi-Max dust port to a 2-1/2 in Craftsman locking hose, and what stops it leaking dust.
Not a direct fit. Joining the Dremel Multi-Max dust port to a 2-1/2 in Craftsman locking hose needs a small port for 1-1/4 in hose tip to 2-1/2 in step reducer.
Rings drawn to scale from the measured diameters in the table below.
The two ends
| End A | Dremel Multi-Max dust port (1-1/4 in ID) |
|---|---|
| End B | 2-1/2 in Craftsman locking hose (2-1/4 in OD, 2-1/4 in ID) |
| Fit type | hose cuff into female socket |
| Reducer needed | small port for 1-1/4 in hose tip to 2-1/2 in step reducer |
Shop notes
Measured across the joint between the Dremel Multi-Max dust port and the 2-1/2 in Craftsman locking hose, the hose tip (57 mm) is 25 mm larger than the port socket (32 mm), so it will not seat. A small port for 1-1/4 in hose tip to 2-1/2 in 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 small port for 1-1/4 in hose tip to 2-1/2 in step reducer on AmazonaffiliateFind small port for 1-1/4 in hose tip to 2-1/2 in step reducer on eBayaffiliateRelated connections
- Dremel Multi-Max dust portsmall port for 1-1/4 in hose tip
- 2-1/2 in Craftsman locking hose2-1/2 in, cuff approx 2-1/4 in OD
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