Chicago-latrobe 48760 Screw Machine Drill Bit Wire 60

Product Description

The CHICAGO-LATROBE 48760 is a screw machine length drill bit designed for high-volume drilling in tight-clearance applications where a standard-length bit would overhang or flex. Built from high speed steel with a bright uncoated finish, this bit measures 0.040 inches in diameter (Wire Size 60) and features a 118-degree standard point angle with a web-thinned tip for easier penetration and reduced thrust. The right-hand spiral flute geometry clears chips efficiently during operation. Overall length is 1-3/8 inches with a 1/2-inch flute length, making it suited for screw machine, turret lathe, and drill press setups where short, rigid tooling is required.

This bit is built for general purpose metal drilling in production and repair environments. Primary workpiece materials include cast iron, non-ferrous metals, and steel. The straight-cylindrical shank seats directly in standard drill chucks, collets, and quick-change toolholders. Typical users include machinists, tool and die technicians, and maintenance professionals working with metal fabrication equipment or performing precision hole operations in small-diameter applications.

Key Features

• Wire Size 60 diameter (0.040 inches) with tight tolerance of +0.0000 to -0.0005 inches
• 118-degree standard point angle with web-thinned tip reduces entry thrust
• High speed steel construction for durability across cast iron, steel, and non-ferrous metals
• Screw machine length (1-3/8 inches overall) provides rigidity and minimizes deflection
• Bright uncoated finish suitable for general purpose drilling without specialized coating needs
• Right-hand cut with regular spiral and parallel web for consistent chip evacuation

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for screw machine, turret lathe, and drill press applications drilling cast iron, non-ferrous metal, and steel workpieces. Conforms to ISO standards for drill bit geometry and tolerances.

Installation Notes

Installed by machinists and metal fabrication technicians in standard drill chucks or collet-style toolholders. Ensure the machine spindle is fully stopped and secured before inserting or removing the bit. For small-diameter bits like Wire Size 60, use appropriate chuck jaws rated for the diameter range to prevent slippage. Do not force the bit through hardened or abrasive materials beyond the rated workpiece material specifications.