Precision Twist Drill 5997616 Jobber Drill Bit 11/32

Product Description

The PRECISION TWIST DRILL 5997616 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It measures 11/32 inch (0.3438 inch) in diameter with a 135-degree split-point angle that reduces walking and improves bite on curved or hard surfaces. The bit is made from high speed steel with a steam oxide coating for corrosion resistance and reduced friction during cutting. Overall length is 4.75 inches with a flute length of 3.4375 inches. Right-hand spiral flute geometry evacuates chips efficiently. This bit is used by machinists, millwrights, plumbers, and HVAC technicians for metal drilling applications across trade and shop environments.

The 5997616 is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It performs well in both hand-held drill applications and drill press setups where consistent hole quality is required. The straight-cylindrical shank fits standard three-jaw chucks. The R10B series designation indicates a 10xD flute-to-diameter ratio, making it appropriate for through-hole and moderate-depth drilling tasks in fabrication, installation, and maintenance work.

Key Features

• 135-degree point angle reduces bit walking and improves self-centering on hard surfaces
• High speed steel construction with steam oxide coating for corrosion resistance and reduced friction
• Right-hand spiral flute with regular helix for efficient chip evacuation
• Web-thinned tapered web design lowers thrust requirements during drilling
• Straight-cylindrical shank compatible with standard chucks
• Meets ANSI and NAS 907 standards for heavy-duty general-purpose drilling

Compatibility

Designed for use in standard three-jaw drill chucks accepting an 11/32 inch straight-cylindrical shank. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium as indicated by material codes P, M, K, N, and S.

Installation Notes

Install the bit securely in a three-jaw chuck and verify it is fully seated and centered before operation. Power down and de-energize any associated equipment before changing bits on powered tools. Use appropriate cutting fluid or coolant when drilling hard metals such as stainless steel or titanium to extend bit life and maintain hole quality. Follow applicable shop safety practices and wear appropriate personal protective equipment during drilling operations.