Precision Twist Drill 5996282 Jobber Drill Bit 1/4 in Hss

Product Description

The PRECISION TWIST DRILL 5996282 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It is machined from high-speed steel (HSS) with a bronze bright coating and features a 135-degree split-point tip with web thinning for faster starts and reduced walking on hard surfaces. The 1/4-inch diameter, two-flute spiral design clears chips efficiently during through-hole and blind-hole drilling. With a 4-inch overall length and 2-3/4-inch flute length, this bit fits standard drill chucks and magnetic drill press setups used daily by machinists, maintenance techs, and trade professionals.

This bit is suited for drilling steel, stainless steel, cast iron, superalloys, and titanium in fabrication shops, mechanical rooms, and field service environments. The straight cylindrical shank with a 1/4-inch diameter seats securely in keyed and keyless chucks without requiring adapters. It belongs to the HX10-HX15-HX18 series, which covers general-purpose jobber-length HSS bits conforming to ANSI standards. Typical applications include structural drilling, equipment repair, panel work, and maintenance drilling where a reliable, consistent-geometry bit is required.

Key Features

• 135-degree split-point tip reduces walk and improves penetration on hard metals without a center punch
• Web-thinned, tapered web construction lowers thrust requirements for cleaner entry
• High-speed steel construction handles heat generated in steel, stainless steel, cast iron, superalloys, and titanium
• Bronze bright coating provides light surface protection and reduced friction during cutting
• Regular spiral, two-flute design promotes consistent chip evacuation
• ANSI-conforming geometry ensures compatibility with standard chuck and drill press setups

Compatibility

Rated for primary workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium (material codes P, M, K, S). Part of the HX10-HX15-HX18 series with a drill-by-diameter ratio of 11xD. No coolant-through capability; intended for dry or externally lubricated drilling operations.

Installation Notes

Install in a keyed or keyless drill chuck rated for 1/4-inch straight-cylindrical shanks; verify chuck is fully tightened before operation. De-energize or unplug the drill before changing bits. When drilling stainless steel, superalloys, or titanium, use a cutting fluid or cutting oil to manage heat and extend bit life. Do not exceed the recommended maximum drilling depth of 2-3/4 inches for this bit length.