I purchased a large auction lot of carbide endmills designed for cutting plastic. The factory they came from was running multiple spindle machines (up to 22 spindles per machine) and changed the cutters out often. Most of the cutters show no wear and some show minimial wear on the bottom 1/8" or so. For they guys here I would pick out the niceset. I've run a few cutters on random UHMW, Delron, and Nylon 6/6 jobs and they cut like butter.
1/8 - 1/2" Carbide Sq Bottom only. Examples include
1/2'' Carbide Cutter Two Flute Low Helix Upcut Finishers Vortex 4260 List $99 => Asking $15
1/2'' Carbide Cutter Three Flute Downcut Phenolic/Composite Spirals - Series 6200 List $124 => Asking $15
3/8'' Carbide Cutter Three Flute Low Helix Upcut Finishers - Series 4400 List $88 => Asking $12
1/4" Solid Carbide Two Flute Upcut for Hard and Soft Plastics List $28 => Asking $5
I haven't inventoried the stuff below 1/4 but there are 1000's of 1/8" single flute and 3/16 2 flute.
If you need some plastic cutters PM and I might have a deal.
1/8 - 1/2" Carbide Sq Bottom only. Examples include
1/2'' Carbide Cutter Two Flute Low Helix Upcut Finishers Vortex 4260 List $99 => Asking $15
1/2'' Carbide Cutter Three Flute Downcut Phenolic/Composite Spirals - Series 6200 List $124 => Asking $15
3/8'' Carbide Cutter Three Flute Low Helix Upcut Finishers - Series 4400 List $88 => Asking $12
1/4" Solid Carbide Two Flute Upcut for Hard and Soft Plastics List $28 => Asking $5
I haven't inventoried the stuff below 1/4 but there are 1000's of 1/8" single flute and 3/16 2 flute.
If you need some plastic cutters PM and I might have a deal.