Precision Twist Drill 5997124 Jobber Drill Bit 15/32 in Hss

Product Description

The PRECISION TWIST DRILL 5997124 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. Sized at 15/32 inches (0.4688 inches decimal), it features a 135-degree split-point tip geometry with web thinning for improved centering and reduced thrust when starting a hole. The straight-cylindrical shank seats securely in standard drill chucks. Built from high speed steel with a bright uncoated finish, this bit delivers reliable performance across a wide range of ferrous and non-ferrous workpiece materials without the added cost of specialty coatings.

This bit is suited for production and maintenance drilling in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits into standard drill press, CNC, or handheld drill setups wherever a straight shank is accepted. The QC21P series parabolic spiral flute design promotes efficient chip evacuation during deeper passes, making it practical for both short-run shop work and repetitive field drilling tasks. Licensed tradespeople and industrial machinists are the typical installers and operators of this tool.

Key Features

• 15/32 inches diameter with 0.4688 inches decimal dimension for precise fit to tolerance
• 135-degree standard point angle with web thinning reduces walking and entry thrust
• Parabolic spiral flute (Regular spiral type) promotes chip clearance over the full 4.3125 inches flute length
• High speed steel construction handles steel, stainless, cast iron, non-ferrous metals, and superalloys
• Straight-cylindrical shank (15/32 inches diameter) fits standard 3-jaw drill chucks without adapters
• ANSI-standard dimensions ensure consistent fitment across compatible toolholding systems
• Bright uncoated finish allows easy visual inspection of cutting edge condition

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill presses, milling machines, and handheld power drills accepting a straight-cylindrical shank. Rated for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium per ANSI specifications.

Installation Notes

A qualified machinist or licensed tradesperson should verify chuck capacity before seating the shank, ensuring the chuck jaws grip the full straight shank without slippage. De-energize the drill press or power tool completely before changing bits. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to manage heat buildup, as this bit does not include through-coolant capability. Always wear appropriate eye protection and secure the workpiece firmly before drilling.