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ER Fractional (Inch) Collets

Product Overview
Extended-Range ER "spring" collets have a gripping range of 1mm, or 0.040", the most of any collet commonly used in tool holding. As an example, a 1/2" collet will compress from 0.500" down to 0.460".

Glacern inch sized collets have true nominal inch bores, minimizing compression for maximum concentricity and minimum runout. All collets are precision ground for less than 0.0002" of indicated runout.

NEW! Glacern Coolant collets are now available in ER16, ER25, and ER32 sizes identical to their normal non-coolant counterparts. The difference is that the coolant collets are meant to be used with thru-coolant tools and pull studs allowing greater water pressure through the collet. For coolant collets see here: Glacern Thru Coolant Collets

Set Sizes Included
ER16-Fractional 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8
ER20-Fractional 1/8, 5/32, 3/16, 7/32, 1/4, 9/32,
5/16, 11/32, 3/8, 7/16, 13/32, 7/16
ER25-Fractional 1/8, 5/32, 3/16, 7/32, 1/4, 9/32,
5/16, 11/32, 3/8, 7/16, 15/32, 1/2, 9/16, 19/32, 5/8
ER32-Fractional 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 7/16, 15/32, 1/2, 17/32, 9/16, 5/8, 21/32, 11/16, 3/4, 25/32
ER40-Fractional 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 11/32, 3/8, 7/16, 15/32, 1/2, 17/32, 9/16, 5/8, 21/32, 11/16, 3/4, 25/32, 13/16, 27/32, 7/8, 31/32, 1.00"

ER Fractional Collet Sets
ER16-Fractional ER16 Fractional Collet Set, 9pc PHOTO $179.99 IN STOCK
 
ER20-Fractional ER20 Fractional Collet Set, 12pc PHOTO $189.99 IN STOCK
 
ER25-Fractional ER25 Fractional Collet Set, 15pc PHOTO $249.99 IN STOCK
 
ER32-Fractional ER32 Fractional Collet Set, 18pc PHOTO $379.99 IN STOCK
 
ER40-Fractional ER40 Fractional Collet Set, 23pc PHOTO $399.99 IN STOCK
 

ER Collet Custom 6-PACK
ER-COLLET-6PACK Custom ER Collet Set - You Pick 6 $149.99 IN STOCK
 
ER-COLLET-12PACK Custom ER Collet Set - You Pick 12 $269.99 IN STOCK
 

ER32 Individual Fractional Collets
ER32-1/8 ER Collet $24.99 IN STOCK
 
ER32-5/32 ER Collet $24.99 IN STOCK
 
ER32-3/16 ER Collet $24.99 IN STOCK
 
ER32-7/32 ER Collet $24.99 IN STOCK
 
ER32-1/4 ER Collet $24.99 IN STOCK
 
ER32-9/32 ER Collet $24.99 IN STOCK
 
ER32-5/16 ER Collet $24.99 IN STOCK
 
ER32-11/32 ER Collet $24.99 IN STOCK
 
ER32-3/8 ER Collet $24.99 IN STOCK
 
ER32-7/16 ER Collet $24.99 IN STOCK
 
ER32-15/32 ER Collet $24.99 IN STOCK
 
ER32-1/2 ER Collet $24.99 IN STOCK
 
ER32-17/32 ER Collet $24.99 IN STOCK
 
ER32-9/16 ER Collet $24.99 IN STOCK
 
ER32-5/8 ER Collet $24.99 IN STOCK
 
ER32-21/32 ER Collet $24.99 IN STOCK
 
ER32-11/16 ER Collet $24.99 IN STOCK
 
ER32-3/4 ER Collet $24.99 IN STOCK
 
ER32-25/32 ER Collet $24.99 IN STOCK
 

ER25 Collets
ER25-1/8 ER Collet $24.99 IN STOCK
 
ER25-5/32 ER Collet $24.99 IN STOCK
 
ER25-3/16 ER Collet $24.99 IN STOCK
 
ER25-7/32 ER Collet $24.99 IN STOCK
 
ER25-1/4 ER Collet $24.99 IN STOCK
 
ER25-9/32 ER Collet $24.99 IN STOCK
 
ER25-5/16 ER Collet $24.99 IN STOCK
 
ER25-11/32 ER Collet $24.99 IN STOCK
 
ER25-3/8 ER Collet $24.99 IN STOCK
 
ER25-7/16 ER Collet $24.99 IN STOCK
 
ER25-15/32 ER Collet $24.99 IN STOCK
 
ER25-1/2 ER Collet $24.99 IN STOCK
 
ER25-9/16 ER Collet $24.99 IN STOCK
 
ER25-19/32 ER Collet $24.99 IN STOCK
 
ER25-5/8 ER Collet $24.99 IN STOCK
 

ER16 Collets
ER16-1/8 ER Collet $24.99 IN STOCK
 
ER16-5/32 ER Collet $24.99 IN STOCK
 
ER16-3/16 ER Collet $24.99 IN STOCK
 
ER16-7/32 ER Collet $24.99 IN STOCK
 
ER16-1/4 ER Collet $24.99 IN STOCK
 
ER16-9/32 ER Collet $24.99 IN STOCK
 
ER16-5/16 ER Collet $24.99 IN STOCK
 
ER16-11/32 ER Collet $24.99 IN STOCK
 
ER16-3/8 ER Collet $24.99 IN STOCK
 
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