15PCS ER11 Spring Collet Set
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<br />Model: ER11
<br />Precision:&amp;lt;0.012
<br />Material:Spring Steel
<br />Ground Roughness is Ra0.4 Microns, plus overall fine polish
<br />Gripping Range: 1 mm,1.5 mm,2 mm,2.5 mm,3 mm,3.5 mm,4 mm,4.5 mm,5 mm,5.5 mm,6 mm,6.5 mm,7 mm,1/4&quot;,1/8&quot;
<br />Upper Diameter: 12 mm
<br />Bottom Diameter: 8 mm
<br />Height: 20 mm
<br />Suitable For: Boring, milling, drilling, tapping, engraving, CNC, spindle hines, and other processing
<br />T.I.R.: 0.0003&quot; or 5um. In order to make all collets running true, on your side, make sure your hine spindle and chuck holder running true, on my side, I'll make sure all those collets running in tenth.
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<br />Features:
<br />1.Durable and practical.
<br />2.Special angled slots increase rigidity.
<br />3.Protects tool holdercontaminants.
<br />4.Better overall balance of tool holder assembly.
<br />5.Use with any standard ER collet chucks for coolant-thru tool applications.
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<br />Package Included:
<br />15 x ER11 Collets
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<br />Note:
<br />Manual measuring, please allow 1 ~ 2 cm error,thank you.