Precision Twist Drill 5997217 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5997217 is a taper length drill bit designed for heavy-duty drilling in a wide range of metallic and non-metallic materials. Manufactured from high speed steel (HSS) with a bright/uncoated finish, this bit features a 135-degree split point that reduces walking and enables self-centering starts without a center punch. The parabolic flute geometry provides efficient chip evacuation and reduced cutting resistance. At 15/64 inch (0.2344 inches) in diameter with an overall length of 6.125 inches and a flute length of 3.75 inches, the 6xD flute-to-diameter ratio gives this bit added reach for deeper bore applications while maintaining rigidity.

The 5997217 is suited for production and maintenance drilling in shop, field, and fabrication environments. The straight shank fits standard drill chucks without adapters. Its parabolic flute and web-thinned, tapered web construction make it well matched for drilling alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, titanium, magnesium, nickel, hardened steel, tempered steel, and graphite. This is a general-purpose heavy-duty bit commonly used by machinists, millwrights, pipefitters, and maintenance technicians.

Key Features

• 135-degree split point for self-centering starts and reduced thrust
• Parabolic flute design promotes fast chip evacuation in deep holes
• Web-thinned tapered web reduces cutting resistance in hard materials
• High speed steel construction rated for heavy-duty use across a broad material range
• Bright/uncoated finish suitable for use with cutting fluids or dry
• Right-hand cut, straight shank — fits standard drill chucks directly

Compatibility

Designed as an OEM-style taper length drill bit conforming to ANSI standards, suitable for use in any standard drill chuck accepting a 0.2344 inch straight shank.

Installation Notes

Installation and use should be performed by a qualified machinist or trained technician. Secure the straight shank fully in the drill chuck and verify concentricity before drilling. Always use appropriate cutting fluid for the material being drilled, and ensure the workpiece is firmly clamped before starting. Follow applicable shop safety standards and wear appropriate PPE including eye protection.