14pcs ER20 1/16 Inch to 1/2 Inch Spring Collets Set For CNC Engraving Milling Lathe Tool

 

Specification:

Model	ER20
Material	Spring Steel
Precision	<0.015
Gripping Range	1/16",3/32",1/8",5/32",3/16",7/32"1/4",9/32",5/16",11/32",3/8",13/32",7/16",1/2"
Upper Diameter	28 mm
Bottom Diameter	25 mm
Height	34 mm
T.I.R.	0.0003" or 5um.

 

Suitable For: Boring, milling, drilling, tapping, engraving, CNC, spindle machines, and other processing

Ground roughness is Ra0.4 Microns, plus overall fine polish.
 

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 chucks for coolant-thru tool applications.

 

14 x ER20 Collets

 

Manual measuring, please allow 1 ~ 2 cm error,thank you.
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.