I saw an ad on ebay that claimed that the same collet that fits a 1617 Bosch also fits a bunch of DW and Hitachi routers. I gave my son a 1617 kit a while back and I just had a chance to compare the collet from his Bosch to the one for my M12V2 Hitachi which is the same as my VC also. They appear to be identical as far as cone diameter goes and either screws onto the other router. Therefore I'm convinced that the list I'm attaching is in fact correct which may be of help to some users of these models in finding replacement collets at some point. The ad is for a 1/4" but would apply to any Imperial or metric sized collet except the OEM part numbers would be different. The attached photo is a 1617 collet on the left and a M12V2 on the right. In the photo they appear ever so slightly different in cone diameter but in my hand I couldn't see any.
Replacement 1/4" Router Collet for Dewalt 326286-04 Bosch 2610906283 Hitachi
1/4" Router Collet Replaces Dewalt 326286-04, Bosch 2610906283, Hitachi 323-293. The collet is slotted on 8 sides. The longer length minimizes run out and reduces vibration.
Fits:
Dewalt:
DW616D Type 1
DW616 Type 1
DW616M Type 1
DW616P Type 1
DW616S Type 1
DW618B3 Type 1
DW618B3E Type 1
DW618D Type 1
DW618 Type 1
DW618M Type 1
DW618P Type 1
DW621 Type 1
DW621 Type 2
DW621-220 Type 1
DW621 Type 3
DW618PKB Type 1
That reminded me Stick that I meant to post this too from the Elaire site. If you go to this page Elaire Corporation -Router Collets and scroll down near the bottom they list Bosch WK type collets that fit some of the older Bosch models. I have an old DW610 model that uses what I am 99% sure is the same collet. I have one and measured mine according to the WK specs and they are very close to what the ad says.
More collet comparisons. The photo is for the collet in my Hitachi M12V. This link is to a Makita collet on Amazon. They appear identical. Its for routers prior to the 3612 I think. My Hitachi collet is 20mm diameter and 1.5mm thread pitch if someone has a similar one to measure.
Precision collets, nuts, and toolholders for ER spindles, and routers from Bosch, Dewalt, Hitachi, Milwaukee, and Porter-Cable.
www.precisebits.com
Collets and collet nuts are available for these in several precision grades at the above link.
I am still looking for additional cross compatible information on Freud, DeWalt, Bosch, Makita, Hitachi, Porter Cable, Sears, Black and Decker, etc. routers (all of which I have, and many others).
Thanks to Chuck for the original post on this. Hopefully others will find this info helpful in the future.
I can confirm the DeWalt DW 621 collet nut is identical to the Hitachi M12VC collet nut and belongs to the Bosch 1604A/1618 family of collets.
The DeWalt DW 610 router collet is substantially different than the DW 621 collet, larger, although not as large as the Porter Cable (690/890/7518) collet/collet nut.
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