Reference
CNC collet systems: ER11, ER16, ER20 and router collets
Pick a collet system to see the shank sizes its makers list, the spindles and routers that take it, and the collets, nuts and wrenches made for it.
- ER11 collets
- ER16 collets
- ER20 collets
- Makita RT0701C collet
- DeWalt DWP611 collet
- Carbide 3D Compact Router collets
Choose your collet system to see the key facts and what fits. Each fact links to its source on the full page.
All collet systems
- ER11 collets ER11 collets top out at 7 mm or 1/4 in in the catalogs checked, not 11 mm. Ranges by maker, nut threads, the spindles that use ER11 and kit sizes.2 products that fit
- ER16 collets ER16 ranges by maker (to 10 mm, 0.375 in, Somma to 13/32 in), why 1/2 in is out of range, nut threads and Carbide 3D's ER16 65 mm spindle.
- ER20 collets ER20 ranges by maker (to 13 mm and 1/2 in), standard vs mini nut threads, the 80 mm spindles that use ER20, kit sizes and makers' runout claims.1 product that fit
- Makita RT0701C collet The Makita RT0701C's own 1/4 in collet (763637-1), the wrenches Makita supplies, the router's speed and power labels, and why it is not an ER collet.1 product that fit
- DeWalt DWP611 collet The DWP611's extended 8-slot 1/4 in collet, Elaire's DWP-series sizes, why DW616/618/621 collets do not fit, and PreciseBits' nut-only rule.
- Carbide 3D Compact Router collets The Carbide Compact Router's 1/4 in factory collet and 1/4 and 1/8 in precision set, why they do not fit the ER-11 Compact Router or VFD spindles.