Onsrud 52-395 Upcut Spiral Router Bit 3/4 in Solid Carbide

Product Description

The ONSRUD 52-395 is a solid carbide upcut spiral router bit designed for high-performance material removal in woodworking and fabrication applications. With a 0.75-inch cutter diameter and a 2.125-inch length of cut, this bit clears chips aggressively by pulling them upward and out of the cut path, reducing heat buildup and improving surface finish on through-cuts. The 30-degree helix angle and double-edge geometry contribute to smooth, consistent cutting action. Right-hand cutting direction is standard for conventional CNC and handheld router setups. Licensed tradespeople and CNC operators working in production or custom shop environments rely on this type of tooling for clean, repeatable results.

This upcut spiral bit is suited for use in CNC routers and high-speed handheld routing equipment where material evacuation is a priority. It performs well in natural wood, wood composites, plastics, and solid surface materials. The uncoated solid carbide construction holds an edge longer than high-speed steel in abrasive materials and maintains dimensional accuracy across extended production runs. It is a practical choice for cabinetmakers, millwork shops, and composite fabricators handling sheet goods or thick stock.

Key Features

• Solid carbide construction for extended edge life in wood, composites, plastics, and solid surfaces
• Upcut flute geometry evacuates chips from the cut zone, reducing recutting and heat
• 30-degree helix angle for smooth, efficient chip flow
• Double-edge design provides balanced cutting forces and surface quality
• Right-hand cutting direction compatible with standard router spindle rotation
• Uncoated finish - no coating buildup concerns when machining resins or adhesive-laden composites

Compatibility

Designed as an OEM-style replacement or direct-use upcut spiral router bit for CNC routers and fixed-base or plunge routers accepting a 3/4-inch shank. Part of the ONSRUD 52-200 series.

Installation Notes

Installation should be performed by a qualified machinist, toolmaker, or CNC operator. Power down and lock out the router or spindle before changing tooling. Insert the shank to the full recommended engagement depth in the collet - never grip on the fluted section. Verify spindle speed is appropriate for the cutter diameter and material before beginning a cut.