Chicago-latrobe 53882 Letter O Hss Tin Drill Bit 135 Deg

Product Description

The CHICAGO-LATROBE 53882 is a jobber-length drill bit designed for heavy-duty metal drilling applications. It is sized at Letter O, equivalent to 0.3160 inches in diameter, and features a 135-degree split point that reduces walking on entry and lowers the thrust needed to penetrate hard materials. The flute is a parabolic design, which improves chip evacuation and helps prevent clogging during deep-hole drilling. The high-speed steel construction is finished with a titanium nitride (TiN) coating that extends surface hardness and wear resistance. Licensed metalworkers and maintenance technicians are the primary installers of this bit.

This bit is built for drilling steel alloy workpieces in production and maintenance environments. The parabolic flute geometry makes it well suited for applications where chip packing is a concern, such as drilling deeper holes or working with gummy alloys. The straight-cylindrical shank seats directly in standard drill chucks without adapters. It is commonly used in fabrication shops, MRO settings, and on the bench by HVAC, plumbing, and electrical tradespeople who need a reliable jobber-length bit for structural steel, brackets, and enclosures.

Key Features

• 135-degree split point reduces bit walking and lowers required drill thrust on steel alloy surfaces
• Parabolic flute design accelerates chip removal and reduces heat buildup during deep drilling
• Titanium nitride (TiN) coating increases surface hardness and extends bit service life compared to uncoated HSS
• Web-thinned, tapered web configuration improves cutting efficiency at the tip
• Straight-cylindrical shank fits standard 3-jaw chucks without reducers or adapters
• Heavy-duty grade construction rated for demanding production and repetitive-use applications

Compatibility

Designed as a jobber-length replacement or upgrade drill bit for use in standard drill chucks accepting a 0.3160-inch straight-cylindrical shank, suitable for drilling steel alloy workpieces in hand-held or drill-press applications.

Installation Notes

Installation is performed by machinists, fabricators, or trade professionals using a hand drill or drill press. Ensure the chuck is fully tightened and the workpiece is securely clamped before drilling. Use appropriate cutting fluid or coolant when drilling steel alloy to manage heat, as this bit does not support coolant-through delivery. Follow applicable shop safety standards and wear eye protection during all drilling operations.