Newbie Question about workpiece holding

[cropwell]

I generally use a pocket on a spoil board like wot Jazz said, but I also have 3D printed some plastic 2-4-8 blocks with M6 threads in them and clamp these onto the T slots and use grub screws or long nylon cap head screws in the horizontal threaded hole to apply clamping force. That way no steel to chew the cutter.

Aren't those Mitee Bites expensive !