Chicago-latrobe 47346 Jobber Length Drill Bit 11.5 Mm Hss

Product Description

The CHICAGO-LATROBE 47346 is a jobber length drill bit designed for general-purpose drilling in metal fabrication and maintenance applications. It measures 11.5 mm (0.4528 inches) in diameter with an overall length of 142 mm (5.591 inches) and a flute length of 94 mm (3.701 inches). The bit is manufactured from high speed steel with an oxide coating that provides basic lubricity and corrosion resistance during cutting operations. A standard 118-degree point angle and web-thinned tip reduce thrust requirements and help the bit self-center on entry. A licensed machinist, millwright, or maintenance technician is the typical installer of this bit type.

This bit is suited for drilling through cast iron and steel in both shop and field settings. The straight-cylindrical shank accommodates standard three-jaw drill chucks on benchtop drill presses, magnetic-base drills, and handheld power drills. The regular spiral flute geometry clears chips efficiently in through-hole and blind-hole operations. It conforms to DIN 338 dimensional standards, making it a straightforward drop-in replacement for any DIN 338 Series 150 jobber drill of the same diameter.

Key Features

• 11.5 mm (0.4528 inch) diameter with a straight-cylindrical shank of equal diameter for universal chuck compatibility
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction with oxide finish for general-purpose metal drilling
• Right-hand cut, two-flute regular spiral geometry for efficient chip evacuation
• Conforms to DIN 338 specification for consistent dimensional accuracy
• Diameter tolerance of -0.0010 to 0.0000 inches ensures consistent hole sizing

Compatibility

Designed as a DIN 338 Series 150 jobber length drill bit with a 11.5 mm diameter, suitable for use in any standard drill chuck that accepts a straight-cylindrical shank of 0.4528 inches. Primary workpiece materials include cast iron and steel.

Installation Notes

A qualified machinist or maintenance technician should install and operate this drill bit. Always power down and de-energize the drill press or handheld tool before changing bits, and secure the workpiece with appropriate clamping before drilling. Use appropriate cutting fluid or lubricant when drilling steel to extend bit life and maintain hole quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.