We recommend the following characteristics when sourcing endmills:
- 2-flute (4-flute have very limited uses and it’s unlikely you would need them)
- Square-nose OR ball-nose
- 1/4" shaft size to fit into mill’s collet
Endmills can be found on
The following end mills are what we recommend you use to get started with BoXZY:
Using Custom-Sized Collets and Collet Reducers
There are a few ways to use bit diameters that aren’t 1/4 “ shaft size.
You can use ‘’’custom sized collets’’’ that are available for purchase here.
You can also use a ‘’’collet reducer’’’ (also known as a collet adapter). A collet reducer adapts smaller bits to BoXZY's 1/4" shank. These insert into BoXZY's Milling Head. You can get them for many size bits.
You do not strictly need a collet reducer. You can do a great deal with a 1/4" bit, but you may wish to use smaller bits as you start different milling projects. You can purchase these here.
Pictured below are two very common sizes of collet reducers: 1/4” to 1/8” and 1/4” to 3/16”
Amana Tool also makes 1/4” to metric adapters (pictured below), so you can use a wider variety of bit sizes: