Spring Collet; Brand Name Bison; Collet Series Designation ER25; Collet Hole Shape Round; Collet Size 4 MM; Body Diameter 1.024 Inch; Overall Length 1.378 ...
People also ask
What does er stand for in collets?
The standard series are: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The "ER" name came from an existing "E" collet (which were a letter series of names) which Rego-Fix modified and appended "R" for "Rego-Fix". The series number is the opening diameter of the tapered receptacle, in millimetres.
What size is an ER25 collet?
ER Collet | Length | Clamping Range |
ER-16 | 27.5 mm (1.08") | 0.5—9 mm (0.020—0.354") |
ER-20 | 31.5 mm (1.24") | 1—13 mm (0.039—0.512") |
ER-25 | 34 mm (1.34") | 1—16 mm (0.039—0.630") |
ER-32 | 40 mm (1.57" | 1—21 mm (0.039—0.827") |
What is er11?
This is the 'standard' tool holder for small routers. ER is the 'name' 11 means that it has an 11 mm diameter at the bottom of the taper in the holder. Why is a collet system is used, why not just mount a chuck which would be more versatile and easier to adjust? A Collet system will: Clamp the bit more firmly.