Chicago-latrobe 48572 Screw Machine Drill Bit 1.125 in

Product Description

The CHICAGO-LATROBE 48572 is a screw machine length drill bit designed for general-purpose drilling in metal fabrication, machining, and maintenance applications. Built from high speed steel with a coated finish, it measures 1.125 inches in diameter and features a 118-degree standard point angle for reliable starting and penetration across a wide range of workpiece materials. The shorter screw machine length body reduces deflection and improves rigidity compared to jobber-length bits, making it well suited for drill press and CNC turret work. Two spiral flutes evacuate chips efficiently during operation.

This bit is intended for use in machine shop, manufacturing, and trade maintenance environments where metal drilling is a routine task. Primary workpiece materials include cast iron, non-ferrous metals, and steel. The straight-cylindrical shank is compatible with standard drill chucks and tool holders. Its general-purpose grade and ISO standard compliance make it a practical choice for production drilling where consistent hole quality and tool longevity are required.

Key Features

• 1.125 inch diameter with a tight tolerance of +0.0000 to -0.0015 inches for consistent hole sizing
• 118-degree standard point angle for accurate positioning and clean entry
• High speed steel construction with coated finish for improved wear resistance
• Screw machine length body reduces deflection and increases rigidity in fixed setups
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Coolant-through design is not required, simplifying setup in standard machine environments

Compatibility

Designed for use in standard drill chucks and tool holders that accept straight-cylindrical shanks. Suitable for drilling cast iron, non-ferrous metals, and steel as the primary workpiece materials.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with metal cutting tools. Ensure the drill press, lathe, or CNC machine is fully powered down and locked out before inserting or removing the bit from the chuck. Secure the shank fully in the chuck jaws and verify runout before beginning a drilling operation. Always use appropriate speeds and feeds for the workpiece material to avoid overheating the cutting edge.