Precision Twist Drill 5996999 Drill Bit Wire 46 Hss

Product Description

The PRECISION TWIST DRILL 5996999 is a jobber-length drill bit designed for general-purpose drilling in metalworking applications. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this bit is built for right-hand cutting with a 135-degree split point that reduces walking on entry and requires no center punch on most surfaces. The wire gauge size is 46, corresponding to a decimal diameter of 0.0810 inches. Overall length is 2.125 inches with a 1.125-inch flute length. The two-flute parabolic spiral design supports efficient chip evacuation during through-hole and blind-hole drilling. This bit is part of the QC21P series and meets ANSI standards. Licensed tradespeople and machinists working in production or maintenance environments will find this a reliable everyday drill bit.

This drill bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The straight cylindrical shank fits standard drill chucks without adapters. A flute-to-diameter ratio of 14xD and tapered web configuration make this bit appropriate for moderate-depth holes up to 1.125 inches. It is commonly used in machine shops, fabrication environments, and field maintenance where small-diameter precision drilling is required.

Key Features

• Wire size 46, 0.0810-inch diameter for precision small-bore drilling
• 135-degree point angle with web thinning reduces entry force and bit walking
• High-speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Parabolic spiral flutes with tapered web promote efficient chip removal
• Straight cylindrical shank fits standard keyless and keyed drill chucks
• Bright uncoated finish; no coolant-through requirement for general-purpose use
• Conforms to ANSI standards; QC21P series heavy-duty grade

Compatibility

Designed as an OEM-style jobber-length drill bit for use in standard drill chucks accepting a 0.0810-inch straight cylindrical shank, compatible with benchtop drill presses, CNC machining centers, and hand-held electric drills used in metalworking and fabrication applications.

Installation Notes

Installation and use should be performed by qualified machinists or tradespeople familiar with rotating cutting tools. Secure the shank fully in the chuck and verify runout before beginning a drilling cycle. Power down and lock out the machine before changing bits. Do not exceed the recommended maximum drilling depth of 1.125 inches without retracting to clear chips.