The LMT Onsrud 66-086 SC Edge Rounding bit is part of the LMT Onsrud 66-000 Series and is a high-performance Solid Carbide single-flute edge-rounding router bit. It is designed primarily for CNC machining and for breaking sharp edges on plastic and solid surface materials.

Within this product family, this tool is valued for producing a smooth, clean, and consistent radius on sheets or fabricated parts. Its O Flute geometry supports clean cutting in materials that can melt or burr. The profile is well suited for precise finishing work where clean edges and repeatable results matter. It reflects the dependable cutting focus associated with LMT Tools. This Router Bit is also a practical choice for shops using a CNC Machine for precise finishing.

LMT Onsrud 66-086 SC Edge Rounding Best Used For:

• Edge Rounding: This bit is specifically designed for Edge Rounding on sheets or finished parts. It helps remove sharp corners while keeping the profile clean and consistent. It is a practical choice when a smooth finished edge is required without changing the part shape more than necessary.
• Materials: It is suited for hard plastics such as Polycarbonate and ABS, soft plastics such as Polyethylene and Polypropylene, and solid surface materials including Acrylic and Corian. These materials often benefit from a cutter that helps limit rough edges and supports a cleaner finish.
• Applications: Ideal for finishing steps in sign-making, architectural pieces, and plastic fabrication where edge quality matters. It can support a more refined appearance on completed parts and panels.
• Performance: The single O Flute design promotes clean, burr-free edges. That makes it a strong choice for materials that may melt or burr with other bits. The cutting style supports smoother chip removal in many plastic routing tasks.

SPECIFICATIONS:

• Tool Type: Single Flute O Flute Edge Rounding Bit from the Onsrud 66-000 Series.
• Cutting Diameter: 1/4" (0.250")
• Shank Diameter: 1/4" (0.250")
• Cut Length (LOC): 3/8" (0.375")
• Overall Length: 2-1/2"

This router bit is built for shops that need dependable finishing performance on plastics and solid surface materials. The Solid Carbide construction supports durability in regular production use. For users comparing cutters in the same category, the Onsrud 66-086 stands out as a focused solution for controlled edge finishing rather than general profiling.

As part of the Onsrud 66-000 Series, it fits well into workflows where material finish and edge consistency are important. The combination of Edge Rounding capability and O Flute geometry makes it especially useful for plastics that can show heat buildup or burring during routing. This helps support cleaner results on finished parts, panels, and fabricated components.