ER Collet Sizes ; 7/8", 0.866—0.906", 22—23 mm ; 15/16", 0.906—0.945", 23—24 mm ; 31/32", 0.945—0.984", 24—25 mm ; 1", 0.984—1.024", 25—26 mm ...
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What are the er collet sizes?
ER Collet | Length | Clamping Range |
ER-11 | 18 mm (0.71") | 0.5—7 mm (0.020—0.276") |
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") |
What is an er 32 collet?
DESCRIPTION. ER32 Collet follows DIN 6499 standard. The standard ER collet is the most widely used clamping system in the world. Made from EN-47 Alloy spring steel for spring action and fully hardened. ER Standard Precision Collet with 10 microns run out.
What is the size of a collet?
The size indicated on the collet is the largest size it can hold and can be collapsed smaller within its collapse range of (0.9mm). For example, ER32-6mm can grab a round shank from 6mm diameter to 5.1mm diameter. The standard ER collet is the most widely used clamping system in the world.
What is an ER11 collet?
ER11 Collets are described by the internal diameter. So a 3mm collet is designed for a bit with a 3mm shank diameter. There is a bit of tolerance built in due to the clamping action so a 3mm collet will also take a 1/8 ” or 3.175mm shank.
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 ...
ER Collets – Inch ; 04211 - 7/32 · 04216 - 7/32 · 04220 - 7/32 · 04225 - 7/32 ; 04211 - 1/4 · 04216 - 1/4 · 04220 - 1/4 · 04225 - 1/4 ...