Chicago-latrobe 48538 Screw Machine Drill Bit 19/32 in Hss

Product Description

The CHICAGO-LATROBE 48538 is a screw machine length drill bit designed for high-volume drilling in metal fabrication and general machining applications. Built from high speed steel with a coated finish, this bit features a 118-degree standard point angle, a right-hand spiral flute, and a straight-cylindrical shank. At 19/32 inch (0.5938 inches) in diameter, it belongs to the Series 157 lineup and is manufactured to ISO standards. The web-thinned, parallel web configuration reduces thrust during entry and helps maintain accurate hole geometry. Licensed machinists, pipefitters, and maintenance technicians are the primary users.

Screw machine length drill bits are shorter than jobber-length bits, which increases rigidity and reduces deflection in tight-clearance setups such as drill presses, turret lathes, and CNC machining centers. This bit is rated for general-purpose drilling in cast iron, non-ferrous metals, and steel. Its reduced overall length makes it well suited for production environments where chatter and bit wander are common concerns on larger-diameter holes.

Key Features

• 19/32 inch (0.5938 inches) diameter with a tolerance of +0.0000 to -0.0012 inches for precise hole sizing
• 118-degree standard point angle with web thinning for reduced entry thrust
• High speed steel construction with a coated finish for extended service life on ferrous and non-ferrous workpieces
• Screw machine (stub) length increases rigidity and minimizes deflection compared to jobber-length bits
• 2-flute regular spiral configuration promotes efficient chip evacuation
• Straight-cylindrical shank compatible with standard drill chucks and collets

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in drill presses, turret lathes, and CNC machining centers with standard chuck or collet systems accepting a straight-cylindrical shank at 19/32 inch diameter.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tools. Secure the shank fully in the chuck or collet before operation, and confirm the spindle is completely stopped before changing bits. Use appropriate cutting fluid or coolant for the workpiece material to manage heat buildup, as this bit does not support through-tool coolant. Eye protection and chip guards are standard safety requirements per shop safety codes.