This 1/4" to 1/8" collet adaptor shank reducer is the mainstay in the CNC'ers toolbox when 1/8" shank bits are the only ones for the job. If you have a 1/4" router and ordering 1/8" bits, DON'T forget this collet!
For 1/4" (6.35mm) CNC router chucks
Reducing to 1/8" (3.175mm)
Material: 1045 case hardened steel
Qty: 2 per order
This 1/4" to 1/8" collet adaptor shank reducer is the mainstay in the CNC'ers toolbox when 1/8" shank bits are the only ones for the job.
Works for any bit with an 1/8" shank. You will get 2 collets. Rarely will you need more unless you have multiple CNC routers.
Fits all brand routers with 1/4: chuck collet (Makita, Dewalt, B&D, etc)
1/4" OD x 1/8" ID (6.35 OD x 3.175 ID)
Material 1045 case hardened steel
This reducing collet adaptor is best suited for any router, either manual or CNC.
Awesome quality and awesome service. I will definitely be a loyal customer.
Great place to purchase from
Product was shipped quickly and was inexpensive. Great place to purchase from.
I like the 1/4 to 1/8 reducer
I have a 1/8 collet that has been giving me issues lately so I bought these reducers. I find that I like the convenience of not having to change the collet. I had thought these reducers were not good because it introduced wobble in the bit but I have not found that to be true with these adapters.
1/4 to 1/8 collet adapter
It works great. Ran true and didn’t affect finish. I would recommend them.
Reducer Collet 1/4 to 1/8
I've had reducer collets that allow the bit to slip no matter how tight I make it but these from IDC Woodcraft work great and no slippage.