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ER25M Collet Nut has an internal thread of M30 X 1.0 pitch. 2. Outside diameter is 1.37" ( 35 mm ). 3. ER25M Collet Nut holds all ER25 collets.
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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")
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.