Precision Twist Drill 5999687 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5999687 is a taper length high speed steel drill bit designed for general-purpose drilling across a wide range of materials. It measures 0.1910 inches in diameter with a 6-inch overall length and a 3-5/8-inch flute length, making it suitable for deeper hole applications where a jobber-length bit would fall short. The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve chip clearance. The bright/uncoated finish is appropriate for general shop and field use where coating is not required.

This bit is built for trades and industrial applications where versatility matters. The straight shank and right-hand spiral flute make it compatible with standard drill chucks on handheld drills, drill presses, and CNC equipment. The Series R52 designation indicates an ANSI-compliant taper length geometry. It is sized to wire gauge #11 and is well-suited to metal fabrication, mechanical contractors, and maintenance technicians who drill through a broad range of ferrous and non-ferrous materials regularly.

Key Features

• 0.1910 inch diameter, wire gauge #11 sizing for precise hole tolerances
• 6-inch overall length with 3-5/8-inch flute length for deeper reach than standard jobber bits
• 118-degree standard point angle with web-thinned tapered web for reduced thrust and cleaner entry
• High speed steel construction handles alloy steel, stainless steel, cast iron, brass, bronze, copper, aluminum, and reinforced plastics
• Bright/uncoated finish suitable for general-purpose and multi-material drilling
• Right-hand cut, regular spiral flute with straight shank - fits standard drill chucks without adapters
• ANSI-compliant Series R52 geometry

Compatibility

Designed as an OEM-style general-purpose taper length drill bit suitable for use in standard straight-shank drill chucks on handheld power tools, benchtop drill presses, and compatible CNC or turret drilling equipment.

Installation Notes

This bit is installed and changed by machinists, mechanical contractors, and maintenance technicians using standard keyed or keyless drill chucks. Secure the shank fully in the chuck before operation and verify the bit runs true to avoid deflection on entry. Follow applicable shop safety procedures including eye protection and secure workpiece fixturing. Inspect the cutting edges before each use and replace if the point shows wear or chipping that would affect hole quality.