Collet Adaptor Set
Set of 2 Collet Adapters
These collet adapters are a quick and inexpensive way to make a 6.35mm collet work with 3.175mm and 4mm shanked bits. They work great with the Makita that comes with the Vertigo CNC, or with other routers with 6.35mm collets.
6.35mm to 3.175mm Collet Adaptor
6.35mm to 4mm Collet Adaptor