15Pcs New ER11 Spring Collet Set For CNC Milling Lathe Tool Engraving

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