Amana Tool DRB-504 Polycrystalline Diamond (PCD) Corner Rounding 1/4 Radius x 1 Inch Dia x 1/2 Cut Height x 1/4 Shank w/ Lower Ball Bearing Router Bit

Amana Tool® Item #DRB-504
Free shipping on orders $49 and up
Excellent for composite panels, fiberglass, fiberglass PCB board, fiberglass reinforced composites, lightweight composites, custom composite materials, fiber-reinforced urethane and fiber-reinforced structural foam floors.

The basic edge-forming bit, the corner-rounding bit rounds an edge to a given radius. The tool is shouldered to cut a fillet. The cut can be used to ease edges, as a simple profile, or as a part of a complex one. Also known as roundover, rounding over, and quarter-round. 

Excellent for Corner Rounding:

  • Aluminum
  • Aluminum Composites
  • Aluminum Composite Material (ACM)
  • Composites
  • Composite Panels
  • Custom Composite Materials
  • Fiberglass
  • Fiberglass PCD Board
  • Fiber-Reinforced Urethane
  • Fiber-Reinforced Structural Foam Floors
  • Hard and Soft Wood
  • Lightweight Composites
  • MDF
  • Plastic
Warning: Not for CNC Use!

WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to
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