Onsrud 52-325 Upcut Spiral Router Bit 0.375 in Solid Carbide

Product Description

The ONSRUD 52-325 is a solid carbide upcut spiral router bit designed for precise material removal in natural wood, plastics, solid surfaces, and wood composites. With a 0.375-inch cutter diameter and a 1.25-inch length of cut, this double-edge bit uses a 30-degree helix angle to pull chips upward and away from the workpiece, reducing heat buildup and improving cut quality. The right-hand cutting direction and uncoated carbide construction make it well suited for production routing and custom fabrication work. CNC router operators and millwork shops will find this bit dependable for through-cuts and profiling applications.

This bit fits standard 3/8-inch collets and is appropriate for use in CNC routers and handheld router applications where a 3-inch overall length tool is acceptable. The upcut flute geometry is especially effective in applications where chip evacuation from deep slots or pockets is a priority, such as routing solid wood panels, MDF, phenolic sheet, and thermoplastics. The 1.75-inch shank length provides secure engagement in the collet during high-feed-rate passes.

Key Features

• Solid carbide construction for long service life in abrasive materials
• Upcut double-edge flute design promotes efficient chip evacuation
• 30-degree helix angle reduces heat and improves surface finish
• Right-hand cutting direction compatible with standard router spindle rotation
• Uncoated finish suitable for natural wood, plastics, solid surfaces, and wood composites
• 3/8-inch shank diameter fits common collet sizes on CNC and handheld routers

Compatibility

Designed for use in CNC routers and handheld routers with 3/8-inch collets. Suitable for cutting natural wood, plastics, solid surfaces, and wood composites per ONSRUD Series 52-200 specifications.

Installation Notes

Install and remove router bits only after the spindle has come to a complete stop and power has been disconnected. Ensure the shank is fully seated and properly torqued in the collet before operation. Inspect the cutting edges for chips or wear before each use, and replace the bit if damage is found. Follow all applicable machine manufacturer guidelines and shop safety procedures when operating CNC or handheld routing equipment.