Chicago-latrobe 47255 Jobber Drill Bit 2.7 Mm Hss

Product Description

The CHICAGO-LATROBE 47255 is a jobber length drill bit designed for general-purpose metal drilling in professional and industrial environments. Built from high speed steel with an oxide coating, it delivers consistent performance on ferrous materials including cast iron and steel. The bit measures 2.7 mm in diameter (0.1063 inches decimal equivalent) with an overall length of 61 mm (approximately 2.40 inches). A standard 118-degree point angle and web-thinned tip reduce thrust and improve chip clearance on entry. Machinists, millwrights, pipefitters, and maintenance technicians will find this bit a reliable choice for day-to-day drilling tasks.

This drill bit is well suited for metal fabrication shops, maintenance and repair operations, and field service environments where cast iron or steel workpieces are common. The straight-cylindrical shank seats directly in standard three-jaw chucks on hand drills, drill presses, and CNC machines without adapters. The 33 mm flute length (approximately 1.30 inches) provides adequate chip evacuation for the typical hole depths encountered in structural and mechanical work. It meets DIN 338 standards, confirming dimensional consistency across the Series 150 product line.

Key Features

• High speed steel construction with oxide coating for corrosion resistance and reduced friction
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• 2.7 mm diameter (0.1063 inches) with tight tolerance of -0.0005 to 0.0000 inches
• Right-hand cut with regular spiral flute for efficient chip removal
• Straight-cylindrical shank fits standard chucks without adapters
• Meets DIN 338 specification for consistent dimensional accuracy

Compatibility

Designed as a general-purpose replacement or stock drill bit for use in standard three-jaw chucks on hand drills, drill presses, and CNC equipment. Primary workpiece materials are cast iron and steel per manufacturer specification.

Installation Notes

Installation is performed by machinists, maintenance technicians, or trade professionals familiar with rotating cutting tools. Secure the straight-cylindrical shank fully in the chuck and verify runout before drilling. Always wear appropriate eye protection and secure the workpiece before operation. Follow applicable shop safety standards and equipment manufacturer guidelines for spindle speed selection based on material and bit diameter.