Accupro 71177174 Spiral Upcut Router Bit 0.25 in Aluminum

Product Description

The ACCUPRO 71177174 is a single-edge, solid carbide spiral upcut router bit designed for precise material removal in aluminum cutting applications. With a 0.25 inch cutter diameter and a 1.25 inch length of cut, this bit evacuates chips upward and away from the workpiece, reducing recutting and heat buildup at the cutting zone. The 22-degree helix angle supports clean, consistent edge quality through aluminum stock. At 3 inches overall length with a 1/4 inch shank diameter, it mounts directly into standard router collets without adapters. Machinists, fabricators, and CNC operators handling aluminum plate and sheet work rely on solid carbide construction for rigidity and tool life at typical routing speeds.

This bit is suited for routing single-sheet aluminum, multi-sheet aluminum, and aluminum plate in both production shop and job-site CNC environments. The upcut flute geometry pulls chips clear of the cut path, making it particularly effective in blind-pocket and through-cut operations where chip clearance directly affects surface finish and tool life. The right-hand cutting direction is compatible with standard router and CNC spindle rotation.

Key Features

• Solid carbide construction for rigidity and extended tool life in aluminum
• Single-edge upcut flute design for efficient chip evacuation
• 22-degree helix angle promotes clean cuts and reduced heat buildup
• Bright/uncoated finish — no coating buildup risk on aluminum, which can weld to coated surfaces
• Right-hand cutting direction compatible with standard router spindle rotation
• No pilot bearing — free-routing and template-guided applications

Compatibility

Rated for use in single-sheet aluminum, multi-sheet aluminum, and aluminum plate applications. Fits any router or CNC spindle accepting a 1/4 inch collet.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator with the spindle fully powered down and locked out before bit changes. Insert the shank fully into the collet and tighten to the router or spindle manufacturer's specified torque range using the appropriate collet wrench. Inspect the cutting edges for chipping or wear before each use, as carbide bits are brittle and should not be dropped or struck. Verify spindle RPM is appropriate for the cutter diameter and material before beginning a cut.