Onsrud 62-733 Downcut Spiral Router Bit 0.375 in Solid Carbide

Product Description

The ONSRUD 62-733 is a downcut spiral router bit machined from solid carbide, designed for cutting hard materials including acrylic, nylon, PVC, polycarbonate, and solid surfaces. It features a single-edge, right-hand cutting geometry with a 21-degree helix angle that drives chips downward during the cut, reducing surface tear-out on the top face of the workpiece. The cutter diameter is 0.375 inches with a 1.125-inch length of cut, an overall length of 3 inches, and a 3/8-inch shank diameter. This bit is supplied uncoated and is intended for use in CNC routers and handheld router applications where clean top-surface finishes are required on plastic and composite materials.

The 62-733 is suited for fabrication shops, sign shops, and trade professionals routing acrylic sheet, PVC trim board, polycarbonate panels, nylon components, and solid surface material. The downcut flute style is particularly effective when top-face finish quality is critical, such as laminated panels or faced sheet goods where delamination or chipping at the entry edge must be minimized. The 1.875-inch shank length provides secure collet engagement across standard CNC and handheld router platforms.

Key Features

• Downcut flute geometry drives chips toward the workpiece surface, reducing top-edge tear-out
• Solid carbide construction provides rigidity and wear resistance in hard plastic and composite materials
• 21-degree helix angle optimized for hard material applications including acrylic, PVC, nylon, and polycarbonate
• Single-edge router style for clean cutting passes in plastic sheet and solid surface stock
• Right-hand cutting direction compatible with standard CNC spindle rotation
• Uncoated finish - no coating buildup to affect dimensional tolerances during precision cuts

Compatibility

Designed for use with acrylic, nylon, PVC, polycarbonate, and solid surface materials. Fits any CNC router or handheld router accepting a 3/8-inch collet. Part of the ONSRUD 62-700 series.

Installation Notes

Installation should be performed by a qualified CNC operator or machinist following the router manufacturer's tooling guidelines. Ensure the router spindle is fully powered down and locked out before changing bits. Insert the shank fully into the collet to the recommended depth and tighten to the collet manufacturer's specified torque using the appropriate collet wrenches. Verify spindle speed and feed rate settings are appropriate for the workpiece material before initiating a cut.