Eagles Tungsten carbide rotary files set of 10 pieces 1/8″ shank helix single cut for wood metal stone et. Carving, engraving, drilling fit 6000-50000 rev/min Dremel tools (Doul helix cut) Power Tools Eagles Tungsten carbide rotary files set of 10 pieces 1/8″ shank helix single cut for wood metal stone et. Carving, engraving, drilling fit 6000-50000 rev/min Dremel tools (Doul helix cut) Read More