ER11 15Pc Spring Collet 1-7mm+1/4"+1/8"+Er11A 5mm Extension Rod *KC24

Detail ER11 15Pc Spring Collet 1-7mm+1/4"+1/8"+Er11A 5mm Extension Rod *KC24

Details:
15PCS ER11 spring collet set
Durable and practical.
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.
Model: ER11A
Height: 38 mm(when the lock nut)
Material: Special quality steel,high hardness.
Shaft hole: 5 mm (+0.02 mm) the need to install heating expansion
ER11A nut:Outside hexagonal nut 19 mm maximum overall diameter
Package Contents:
15 * ER11 Collets
1 * ER11A 5mm Extension Rod

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