Mount size
71 mm router mounts: Sienci's DeWalt and Bosch Colt mount
Sienci's 71 mm LongMill mount for the DeWalt DWP611 and Bosch Colt, why other makers call the DWP611 69 mm, and the MK2 dust-shoe limit.
Also listed as 71mm router mount, LongMill 71 mm mount
Short answer
Sienci sells a 71 mm LongMill router mount for the DeWalt DWP611 and Bosch Colt. Other makers (FoxAlien, Carbide 3D) call the DWP611 69 mm, and neither side explains why. Sienci says its 71 mm mount will not work with the MK2 dust shoe.
Key facts
- Nominal bore
- 71 mm (about 2.80 in, calculated from 25.4 mm per inch)[1][2]A calculation, not a tolerance.
- Labels makers use
- 71 mm (Sienci, for the DWP611 and Bosch Colt); FoxAlien and Carbide 3D call DWP611 parts 69 mm[1][3][4]Both labels are shown; we do not resolve them.
- Routers and spindles made to it
- DeWalt DWP611 and Bosch Colt, per Sienci[1]
- Machines with a holder in this size
- Sienci LongMill (71 mm router mount)[1]
- Rings and shims to other sizes
- Not confirmed
- Collet systems makers pair with it
- Not confirmed
- Dust boots for this size
- Sienci says its 71 mm LongMill mount will not work with the MK2 dust shoe.[1]
- How to check yours
- Measure the body's outside diameter with a caliper on the band the mount clamps, and the mount's inside diameter. PwnCNC advises measuring mount ID, usable clamp height and body OD before ordering a shim.[5]Plain technique; we give no tolerance.
- Not confirmed
- Why Sienci's DWP611 mount is 71 mm while other makers use 69 mm[1]
Watch out for
- Sienci's 71 mm mount will not work with the LongMill MK2 dust shoe.
- A 69 mm DWP611 holder from another maker and Sienci's 71 mm mount carry different labels for the same router; do not swap parts based on the label alone.
Most DWP611 parts on this site are in the 69 mm record. For the machine, see the LongMill MK2.
Questions
What does Sienci's 71 mm mount hold?
Sienci lists its 71 mm LongMill router mount for the DeWalt DWP611 and Bosch Colt. It will not work with the MK2 dust shoe.[1]