Onsrud 63-710 Upcut Spiral Router Bit 1/8 in Solid Carbide

Product Description

The ONSRUD 63-710 is a single-edge upcut spiral router bit machined from solid carbide, designed for cutting hard materials including acrylic, nylon, PVC, polycarbonate, and solid surfaces. The upcut flute geometry pulls chips up and out of the cut, reducing heat buildup and keeping the workpiece clear of debris. With a cutter diameter of 0.125 inches, a 0.25-inch length of cut, and a 21-degree helix angle, this bit delivers clean, precise cuts in plastics and engineered materials. It weighs 0.05 pounds and mounts on a standard 0.25-inch shank. No coating is applied, keeping the carbide substrate exposed for sharp, consistent edge performance.

This bit is well suited for CNC routing and handheld router applications in fabrication shops, sign shops, and production environments that regularly work with thermoplastics and solid surface materials. Typical use cases include profiling, slotting, and through-cutting acrylic sheet, PVC trim board, polycarbonate panels, and nylon stock. The 2-inch overall length provides adequate clearance for most standard material thicknesses encountered in plastic fabrication work. Right-hand cutting direction is standard for conventional router spindle rotation.

Key Features

• Solid carbide construction for durability and heat resistance in hard plastic applications
• Upcut flute geometry evacuates chips upward, reducing re-cutting and heat at the tip
• Single-edge design allows aggressive chip load in materials like acrylic and polycarbonate
• 21-degree helix angle balances cutting aggressiveness with surface finish quality
• Uncoated carbide substrate maintains sharp edge geometry without coating buildup
• Right-hand cutting direction compatible with standard CNC and handheld router spindles

Compatibility

Part of the ONSRUD 63-700 series. Rated for use in acrylic, nylon, PVC, polycarbonate, and solid surfaces. Fits any router collet or CNC spindle accepting a 0.25-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the router or spindle is fully powered down and locked out before inserting or removing the bit. Seat the shank fully into the collet to the manufacturer-recommended insertion depth and torque the collet nut per the router manufacturer's specifications. Verify spindle RPM and feed rate settings are appropriate for the material being cut before starting the pass.