- 4300 Series. Two Flute Low Helix Downcut Finishing Spiral
4300 Series. Two Flute Low Helix Downcut Finishing Spiral
Our double-edge low helix spirals are recommended for cutting hard plastics, such as acrylic and phenolic. The lower helix angle produces less "lifting" and "fluttering" on the plastic material. Tools are extremely sharp, producing very clean edges on plastic materials requiring little secondary work. These bits also provide great finishes in hardwoods. L = left hand rotation.