$20.50
View complete catalog page. Total runout less than .0003 on these precise ER20 collets; Made from Alloy spring steel and fully hardened; All critical collet ...
People also ask
What does ER20 collet mean?
These collets are usually found in a standard series as: ER-8, ER-11, ER-16, ER-20, ER-25, ER-32, ER-40, and ER-50. The numbers represent the opening diameter of the tapered receptacle in millimeters.
What size is an ER20 tool?
ER Collet | Length | Diameter |
ER-20 | 31.5 mm (1.24") | 21 mm (0.83") |
ER-25 | 34 mm (1.34") | 26 mm (1.02") |
ER-32 | 40 mm (1.57" | 33 mm (1.30") |
ER-40 | 46 mm (1.81") | 41 mm (1.61") |
How to identify collet type?
The easiest way to determine what type of collet your machine has is to measure the length and diameter of the collet. All collets have a distinctive length and diameter.
What is the capacity of ER20 collets?
Our ER20 collets have a capacity ranging from . 0625 - . 5000 inches or in metric sizes from 2mm up to 13mm. The number shown on the collet is the largest size that particular collet can hold, but it can be tightened to a smaller size.