Precision Twist Drill 5997116 Jobber Drill Bit 13/32

Product Description

The PRECISION TWIST DRILL 5997116 is a jobber-length twist drill bit engineered for general-purpose drilling in metal and hard materials. Manufactured from high-speed steel (HSS) with a bright uncoated finish, this bit features a 135-degree split point and a parabolic spiral flute that promotes efficient chip evacuation and reduces walking on entry. The straight cylindrical shank measures 13/32 inches (0.4063 inches decimal) and is compatible with standard drill chucks. With an overall length of 5.25 inches and a flute length of 3.875 inches, this bit is suited for production and maintenance drilling applications requiring consistent hole quality.

This bit is designed for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium, covering ISO material codes P, M, K, N, and S. It is well-suited to machine shop, fabrication, HVAC, plumbing, and electrical trade work where repeated accurate drilling into tough base materials is required. The QC21P series targets heavy-duty general-purpose drilling at a 10xD flute-to-diameter ratio, providing adequate flute depth for most standard jobber drilling depths up to 3.875 inches.

Key Features

• 135-degree split-point tip reduces thrust force and minimizes bit walking on hard surfaces
• Parabolic spiral flute design improves chip evacuation in deep-hole drilling
• High-speed steel construction provides durability across ferrous and non-ferrous workpieces
• Straight cylindrical shank fits standard 3-jaw drill chucks without adapters
• Web-thinned, tapered web configuration reduces cutting resistance and heat buildup
• ANSI-standard dimensions ensure consistent fitment across tooling setups

Compatibility

Designed for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Fits any standard drill chuck accepting a 13/32-inch straight cylindrical shank. Part of the PRECISION TWIST DRILL QC21P series.

Installation Notes

Secure the shank fully in the chuck and verify runout before drilling. Power down and lock out the drill press or handheld drill before changing bits. Follow applicable ANSI safety standards and wear appropriate eye protection during use. Cutting fluid is recommended when drilling stainless steel, superalloys, or titanium to extend bit life and maintain hole quality.