Sgs 72970 Compression Spiral Router Bit 1/4 in Solid Carbide

Product Description

The SGS 72970 is a solid carbide compression spiral router bit designed for clean, chip-free cuts in composite plastics and laminated sheet materials. With a 0.25-inch cutter diameter and a 1-inch length of cut, this bit uses a compression flute geometry that simultaneously pushes material down from the top and up from the bottom, preventing delamination and surface tearout on both faces of the workpiece. The 30-degree helix angle and right-hand cutting direction promote efficient chip evacuation. The uncoated solid carbide construction delivers consistent edge sharpness across production runs. It is sized for routers and CNC machines accepting a 1/4-inch shank.

This bit is suited for routing composite plastics, laminates, and similar sheet goods in both shop and production environments. The compression flute style makes it a preferred choice when finish quality on both the top and bottom face of the material is critical, such as in cabinet, furniture, and signage fabrication. The square-end profile supports profiling, slotting, and through-cutting operations. It is sold individually and is a direct fit for any router or CNC spindle with a standard 1/4-inch collet.

Key Features

• Compression flute geometry prevents delamination on both faces of the workpiece
• Solid carbide construction for long-lasting edge retention
• 0.25-inch cutter diameter with a cutter diameter tolerance of -0.003 to +0.000 inches
• 30-degree helix angle promotes efficient chip evacuation
• Right-hand cutting direction, square-end profile
• Uncoated finish; no additional coating buildup affecting dimensional accuracy

Compatibility

Designed for use in routers and CNC machining centers fitted with a standard 1/4-inch collet. Optimized for composite plastics and laminated sheet materials.

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. Insert the shank fully into the collet to the recommended minimum engagement depth before tightening. Inspect the cutting edges for chips or damage before each use, and never exceed the router or spindle manufacturer's rated RPM for the given cutter diameter.