Tool Holders which use ER20 collets are now available for the Midwest Rapid Tool Inc. Automatic Tool Changer. This enables one Tool Holder to accept tool bits with shank diameters of .018" to .511" with the appropriate collet. Collets are available in either imperial or metric sizes. Any standard ER20 collet can be used which meets the DIN6499 spec. Click on the link below and then click Tool Change Demo at the top of the Videos page to see an example of the ER20 Tool Holders cutting the MRT logo.

http://www.midwestrapidtool.com/Video_clips.htm

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