Chicago-latrobe 49492 Spotting Drill 0.5in 90deg Hss

Product Description

The CHICAGO-LATROBE 49492 is a high-speed steel spotting drill designed to precisely locate and start holes before a follow-up twist drill or boring operation. The 90-degree point angle centers accurately on flat and curved workpieces, reducing drill walk and improving positional accuracy. At 0.5 inches in cutting diameter and 3.75 inches overall length, this single-ended tool fits standard drill chucks and CNC spindles. The bright, uncoated finish is suitable for general-purpose drilling in a wide range of ferrous and non-ferrous materials. Right-hand cut, two spiral flutes, and a straight cylindrical shank round out the core geometry. Machinists, tool-and-die techs, and fabrication shops stock this drill as a reliable everyday spotting tool.

The 49492 is used in general-purpose machining environments where accurate hole location is required before full-depth drilling. Its 1.5-inch flute length provides adequate chip clearance for spotting depths typical in light production and job-shop settings. The straight cylindrical shank seats cleanly in drill chucks, collet holders, and keyless chucks on manual mills, drill presses, and CNC machining centers. It is equally at home in fabrication shops, maintenance departments, and production cells working with steel, aluminum, brass, and similar materials.

Key Features

• 90-degree point angle for precise hole location and reduced drill walk
• 0.5 inches cutting diameter with matching 0.5 inches straight cylindrical shank
• High-speed steel construction suitable for general-purpose machining
• Bright uncoated finish — ready to use as-ground, regrindable
• Two spiral flutes, 1.5 inches flute length for efficient chip evacuation during spotting
• Right-hand cut, single-ended design in the 90SPS series

Compatibility

Designed as a general-purpose spotting drill compatible with standard drill chucks, collet holders, and tool holders accepting a 0.5 inches straight cylindrical shank on drill presses, manual mills, and CNC machining centers.

Installation Notes

Install in a clean, properly sized chuck or collet and verify runout before engaging the workpiece. Secure the workpiece firmly before beginning the spotting operation. Inspect the cutting edges for chips or wear before each use, and replace or resharpen when point geometry is compromised. Follow your shop's standard lockout and machine-guarding procedures before changing tooling.