ER Steel Sealed Collet ER40 ER32 ER25 ER20 ER16 & ER11

  • ER Steel sealed collets
  • Works on all ER Collet Chuck Holder
  • ER50 ER40 ER32 ER25 ER20 ER16 ER11 ER8 available
  • High-performance spring steel
  • All surfaces precision ground
  • Twice heat treatment hardened   HRC48
  • ER Collet Clamping Range 1-36mm
  • Concentricity is less than .0002 and 0.0005 at collet face available
  • Oxide black
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    ER Steel Sealed Collet  ER50 ER40 ER32 ER25 Er20 ER16 and ER11

ER Clamping Collets with large tightening force, large clamping range and good accuracy. 
It is generally used for supporting the use of CNC tool holders. It plays an important role in the axial direction of machine tools. 
The use is a wide field, it needs to correspond to a variety of machine tool series, and includes products designed to reflect the 
different styles and characteristics of it and the machine tool, it is widely used in boring, milling, drilling, tapping , 
Grinding and carving.


        We accept custom OEM order 

ER Collets  ER Collets available   ER50 ER40 ER32 ER25 ER20 ER16 ER11 and ER8
Insulation material Alloy Spring Steel Full hardened
Hardness HRC 48
Run Out (TIR) 0.0001″ / 0.003mm
Hole Stand  h6 tolerance and no flexible chucking range
 Clamping increase range  0.5mm or 0.015″
Clamping  Range 1-36mm or 1/16 to 1.25″
Water pressure 80kg/cm2 (1000psi)






We use spring steel from Japan and Germany, Taiwan.
SUJ2 after heat treatment, it has high hardness and toughness, better grinding quality, good flexibility, and longer useful life. hardened in hrc48, all ER Collet 100% QC, keep each collet are in good run out condition, run out checking with 4 times long, using Rego-fix, Collet QC system,99% collet run out under 5 μm.



We sold quantity over  500,000 pieces per year

ER collet clamping range size

ER steel sealed collet





IGSTOOL built-in 2006,over 13+years production line include er collet,collet chuck ,cat40 tool holder ,cat40 collet holder ,collet holder ,shrink fit tool holder and slim fit collet chuck machine tools,we made  er collet from er8 ,er16 ,er20 ,er32 ,er40 up to er50 ,collet chucks taper in cat30,cat40,cat50 ,bt30 ,bt40,bt50 and hsk63 iso20 iso30 etc .We made the spring collet

precision up to 3um and er collet chuck up to 0.002mm run out precision. We also provide er collet set, drill collet,5c collet set and r8 collet set, our er collet precision
match techniks collet and index collets. otherwise, we accept OEM tool collet and router collet, lathe collet chuck, and 16c collet too.

Additional information


ER Collet

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