Onsrud 63-631 Upcut Spiral Router Bit Solid Carbide

Product Description

The ONSRUD 63-631 is a single-edge upcut spiral router bit machined from solid carbide and designed for cutting aluminum and similar non-ferrous materials. It features a 0.5-inch cutter diameter, a 1.125-inch length of cut, and a right-hand cutting direction with a 22-degree helix angle. The upcut geometry pulls chips up and out of the cut, which helps keep the flute clear and reduces heat buildup in the workpiece. At 3.5 inches overall length with a 2.375-inch shank length and a 0.5-inch shank diameter, this bit fits standard half-inch collets on CNC routers and manual router tables. It is used by machinists, CNC operators, and fabricators working with aluminum sheet, plate, and extrusions.

The 63-631 belongs to the ONSRUD 63-600 series, which is engineered specifically for aluminum machining. It is suited for production routing on CNC machining centers and CNC router tables where chip evacuation and surface finish quality in aluminum are the primary concerns. Typical applications include trimming, profiling, and slotting aluminum components in industrial and fabrication shop environments. This bit is not piloted and requires a guided setup or programmed tool path.

Key Features

• Solid carbide construction for hardness and wear resistance in aluminum cutting
• Single-edge upcut flute design promotes efficient chip evacuation
• 22-degree helix angle optimized for non-ferrous material routing
• Right-hand cutting direction compatible with standard CNC spindle rotation
• Uncoated finish suitable for aluminum where coating adhesion can be a concern
• Half-inch shank diameter fits standard collets without an adapter

Compatibility

Designed for use in CNC routers and manual router setups with a 0.5-inch collet. Material application is aluminum per manufacturer specification. Part of the ONSRUD 63-600 series.

Installation Notes

Installation should be performed by a qualified CNC operator or machinist following all machine-specific lockout and tool-change procedures. Ensure the spindle is fully stopped and de-energized before inserting or removing the bit from the collet. Verify collet condition and proper seating depth before running the spindle. Do not exceed the manufacturer-rated feed and speed parameters for the material being cut.