What Bosch Confirms
The official 1617EVS product page lists “Dust Collection: No.” That means the router alone should not be treated as if it already had a universal vacuum port. Dust collection is added with Bosch hood accessories matched to the base and routing operation.
The RA1173AT kit is intended for the 1617 family and connects directly to 35 mm vacuum hoses. Bosch also specifies VAC002/VAC024 for 1-1/4 in. and 1-1/2 in. hoses, and VAC020 for 2-1/2 in. hoses.
Choose the Connection for Your Hose
With a Bosch or compatible 35 mm hose, the appropriate hood can connect without a size reducer. For 1-1/4 in. or 1-1/2 in. hose, use the Bosch adapter specified for those sizes. For 2-1/2 in. hose, Bosch references VAC020.
Hood choice also depends on fixed base, plunge base and the routing operation. Do not order by hose diameter alone: verify that the hood itself matches your 1617 configuration.
Use the Finder
Select Bosch, Router, then 1617 or 1617EVS. The Finder separates the direct 35 mm connection from configurations that require VAC002/VAC024 or VAC020.
Frequently Asked Questions
Does the Bosch 1617 have built-in dust collection?
No. Bosch lists “Dust Collection: No” for the 1617EVS; a compatible dust hood must be added.
Which adapter is used for a 1-1/4 in. hose?
Bosch specifies VAC002 or VAC024 depending on the hood/configuration.
Which adapter is used for a 2-1/2 in. hose?
Bosch references VAC020 for 2-1/2 in. hoses with compatible dust-collection attachments.
Technical Sources
The sizes and part references in this guide are based on the following official pages: Bosch 1617EVS Bosch RA1173AT.
Disconnect the machine before measuring or installing a fitting. Check the manufacturer manual, keep guards in place and never force a connector whose geometry does not match.