Cut outs

[Digitalwoodshop]

Any End Mill type bit that has a cutter on the end for the plunge cut.

For thinner material I have been using the Circuit Board Bits that I get on eBay and a 1/4 to 1/8 holder from the roto zip line of bits.

The bit will need to have a cutter at least .8 long.

[CW-HAL9000]

The 1/8 inch cutting bit is the most common. Be sure and set for multiple passes I use .250 for max cutting depth. LHR also makes a 3/16 cutting bit.

[Scott J. Zeiger]

I realize your post is old, but where did you find the bit holders? I have searched and searched and have come up empty handed.

Thanks for your time.

[blhutchens]

Precisebits.com has some I have been using. They have some that go from 1/2 to 1/8

http://www.precisebits.com/products/..._500.asp?tsPT=

[bergerud]

There is also the ER11M adapter:

http://www.ebay.com/itm/New-1pcs-1-2...item41756bc469