Chicago-latrobe 48504 Screw Machine Drill Bit 1/16 in Hss

Product Description

The CHICAGO-LATROBE 48504 is a screw machine length drill bit designed for high-speed steel cutting in metal fabrication and general machining applications. Built to Series 157 specifications, this 1/16 inch (0.0625 inch) diameter bit features a 118-degree standard point angle, spiral flute geometry, and a straight-cylindrical shank. The bright, uncoated HSS construction delivers reliable performance across a range of ferrous and non-ferrous materials. Right-hand cut and web-thinned at the tip, this bit reduces feed force and improves chip evacuation in short-hole drilling. It ships individually and is sold in multiples of 12.

The 48504 is suited for general-purpose drilling in metalworking shops, maintenance facilities, HVAC fabrication environments, and light manufacturing. Its screw machine length body, shorter than a jobber bit, provides added rigidity when working in drill presses, CNC turrets, or screw machine setups. Primary workpiece materials include cast iron, non-ferrous metals, and steel. The compact overall length of 1-5/8 inches minimizes deflection on small-diameter work.

Key Features

• 1/16 inch (0.0625 inch) diameter with a tight tolerance of +0.0000 to -0.0005 inches
• 118-degree standard point angle with web-thinned, parallel web configuration
• High speed steel construction, bright/uncoated finish for general-purpose use
• Screw machine length body at 1-5/8 inches overall for maximum rigidity on small holes
• Two-flute spiral design with 5/8 inch flute length for efficient chip removal
• Right-hand cut with straight-cylindrical shank for standard chuck compatibility

Compatibility

Designed for use in drill presses, CNC screw machines, and hand-held drilling equipment where a straight-cylindrical shank is accepted. Compatible with cast iron, non-ferrous metals, and steel workpieces as stated by the manufacturer. Part of the CHICAGO-LATROBE Series 157 product line.

Installation Notes

Installation of screw machine drill bits should be performed by a qualified machinist or maintenance technician. Secure the shank fully in the chuck and verify concentricity before operation. Follow machine manufacturer speed and feed guidelines for the workpiece material and bit diameter. Inspect the cutting edges for wear or damage before each use and replace bits that show chipping or deformation.