Sgs 91013 Downcut Spiral Router Bit 1/4 Inch Solid Carbide

Product Description

The SGS 91013 is a solid carbide downcut spiral router bit designed for clean, splinter-free cuts in composite plastics and non-ferrous metals. It features a 0.25 inch cutter diameter, a 0.75 inch length of cut, and a 1/4 inch shank diameter, with an overall length of 2.5 inches. The downcut flute geometry pushes chips toward the workpiece surface, which reduces tearout on the top face of the material. The 35-degree helix angle and bright uncoated finish are well-suited for applications where chip evacuation and surface quality matter. This bit is intended for use by machinists, woodworkers, and fabricators working with routers and CNC routing equipment.

This router bit is built for routing composite plastics and non-ferrous metals in both shop and production environments. The square end profile makes it effective for profile cuts, dadoes, and slotting operations where a flat-bottomed cut is required. The right-hand cutting direction is standard for conventional CNC and handheld router setups. With a 1.75 inch shank length and tight cutter diameter tolerance of -0.003 to +0.000 inches, this bit maintains consistent dimensional accuracy across repeated cuts.

Key Features

• Solid carbide construction for rigidity and long tool life in abrasive materials
• Downcut flute type reduces surface tearout and keeps top-face finish clean
• 35-degree helix angle optimized for composite plastic and non-ferrous metal routing
• Bright uncoated finish suitable for non-ferrous and plastic applications where coatings may cause adhesion
• Tight cutter diameter tolerance of -0.003 to +0.000 inches for dimensional consistency
• Square end profile delivers flat-bottomed cuts for dadoes and slot routing

Compatibility

Designed for use in routers and CNC routing machines accepting a 1/4 inch round shank. Suitable for routing composite plastic and non-ferrous metal workpieces as indicated by primary workpiece material code N and secondary material designation.

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 installing or removing the bit. Insert the shank fully into the collet to the recommended engagement depth and tighten the collet nut to the router manufacturer's specification. Verify spindle speed settings are appropriate for the material and cutter diameter before beginning the cut.