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Connect a Makita track saw / router 36 mm port to a Festool D32/22 antistatic hose

How to join a Makita track saw / router 36 mm port to a Festool D32/22 antistatic hose, and what stops it leaking dust.

Reducer required

Not a direct fit. Joining the Makita track saw / router 36 mm port to a Festool D32/22 antistatic hose needs a hose 27 mm ID / 36 mm OD tool end to 22 mm step reducer.

END A36 mmMakita track saw / router 36 mm port (1-7/16 in OD, 36 mm OD)
END B22.2 mmFestool D32/22 antistatic hose (7/8 in ID)

Rings drawn to scale from the measured diameters in the table below.

The two ends

End AMakita track saw / router 36 mm port (1-7/16 in OD, 36 mm OD)
End BFestool D32/22 antistatic hose (7/8 in ID)
Fit typemale port into hose cuff
Reducer neededhose 27 mm ID / 36 mm OD tool end to 22 mm step reducer

Shop notes

Measured across the joint between the Makita track saw / router 36 mm port and the Festool D32/22 antistatic hose, the port (36 mm) is 14 mm larger than the hose (22 mm), so it will not seat. A hose 27 mm ID / 36 mm OD tool end to 22 mm step reducer closes that 14 mm step so the two hold together instead of leaking at the gap.

A 14 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.