I have an Hitachi Router for my CNC machine like seen here: http://www.hitachi-koki.com/powertools/products/cutter/km12vc/km12vc.html

I am looking for two things. First some sort of quick change collet that will work for my router at a decent price and can accept 1/2",1/4" & 1/8" dia bit shafts. And second, something to ensure my depth after changing bits is at a length my CNC machine knows about.

I did find something called "Stop rings" that ensure same depth as seen here: http://drillcity.stores.yahoo.net/stoprings1.html but they only work on 1/8" dia shaft's. I need something that will also work on 1/2" & 1/4" dia shaft's.

Any suggestions?

Would a drill stop work?

http://gallery.bcentral.com/GID4308581P3401121-DRILL-BITS/Drill-Stops.aspx

b.

Thanks aggie_67. That looks like it will do the trick.

Anyone know of a 1/8" collet that's compatable with the router I listed above? Mine can only do 1/4" & 1/2" and I need something that will fit my smaller bits that have a 1/8" shaft.

My local Lowes Home Improvement has one in their router bit section.