Wokesi Set 4Pcs ER20 11mm-12mm Clamping Range, Spring Collet Set For CNC Lathe Machine Milling Chuck Holder Tool,RUN OUT 0.0002" (ER20-12 11-12mm)

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Feature

ER20-12 Spring Collet Range:11-12mm.Run Out Tolerance:0.005mm(0.0002")
High-quality spring steel material,endurable and long life
Good flexibility and abrasion resistance,tight and stable clamping
True double angle for extreme concentricity.
Package:4Pcs ER20-12 Collet Chuck

Description

SERIES:ER-20 PRODUCT DETAILS:
T.I.R.:0.005mm(0.0002")
Wide holding range:1mm(.0394")
ER20-12 Collet Range:11-12mm
Collet Diameter:21mm
Collet Length:31.5mm

1.Made of special elastic steel:65Mn.
2.Used for boring,milling,drilling,tapping,grinding and engraving operation etc.
3.Difference size for customer to choose,compatible with DR,RD,ESX,AR,BR series collets.
4.Significantly improve the wear resistance, repeated clamping life can be increased by 50%.