Sgs 53223 Drill Bit Letter W 0.386 in Solid Carbide 150 Deg

Product Description

The SGS 53223 is a jobber-length drill bit sized Letter W (0.386 inches diameter), designed for demanding hole-making in ferrous and non-ferrous metals. Built from micrograin solid carbide, it delivers the rigidity and wear resistance needed for cast iron, hardened steel, and non-ferrous workpieces. The 150-degree split point reduces thrust and self-centers on entry without a pilot hole. Three spiral flutes with a web-thinned, tapered web configuration improve chip evacuation and reduce cutting torque. Overall length is 4.5 inches with a flute length of 2.875 inches. This bit is used by machinists, tool-and-die shops, and maintenance mechanics who need reliable, repeatable performance in production and repair environments.

The SGS 53223 fits standard jobber-length drill press chucks, CNC machining centers, and handheld power tools with straight-shank collets or keyless chucks accepting a 0.386-inch straight-cylindrical shank. Primary workpiece materials include cast iron, hardened steel, general steel, and non-ferrous metals such as aluminum and brass. Its Series 103 geometry and 5xD flute-to-diameter ratio make it well suited for moderate-depth holes in both production runs and one-off repair work. The bright uncoated finish allows easy visual inspection of the cutting edge between uses.

Key Features

• Micrograin solid carbide construction for extended tool life in hard and abrasive materials
• 150-degree drill point angle with web-thinned tapered web reduces entry thrust and improves self-centering
• Three regular spiral flutes promote efficient chip evacuation and lower cutting torque
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Bright uncoated finish allows quick visual edge inspection; no coating delamination risk
• Diameter tolerance of +0.0000 to -0.0005 inches for consistent, close-tolerance holes
• Conforms to DIN 6539 standard for jobber-length carbide drills

Compatibility

Designed for use in drill presses, CNC machining centers, and power tools equipped with straight-shank chucks or collets accepting a 0.386-inch shank. Suitable for cutting cast iron, hardened steel, general steel, and non-ferrous metals per the Series 103 general-purpose grade designation.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance mechanics familiar with cutting tool safety. Always secure the workpiece and verify chuck or collet runout before beginning a cut. Do not exceed the recommended maximum drilling depth of 2.297 inches without retracting to clear chips. Carbide is brittle and can fracture if the tool is side-loaded, dropped, or used in an undersized chuck.