Description of Niagara Cutter N54021 Uncoated Finishing
2 Flute design makes these ideal for plung cutting when chip removal is not a problem General purpose end mill for working all types of materials Made of extra-fine grade carbide for ultra high transverse rupture strength Uncoated end mills feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications Center Cutting End Mills are designed with "End Teeth" making these ideal for Slotting and Cavity applications. Model Number: N54021. Country Of Origin: United States. Item Package Weight: 0.1 lb.
I have this for cutting grooves in HDPE and wood framed slingshots. The cutter I had before didn't like HDPE, no matter the speed. I went to Karbid. The edges of this little bug are well formed. I didn't see any dull edges or uneven casting. The cutter works well on wood and Baltic birch plywood at high RPM and well on HDPE at very low RPM so molten plastic doesn't splatter all over the place. The beater doesn't pull material into the cutter like my old one did. He will pull it, but not snatch…