Precision Twist Drill 5998576 7/64 in Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 5998576 is a screw machine length drill bit designed for high-performance drilling in a variety of metalworking and fabrication applications. Built from high speed steel (HSS) with a bright, uncoated finish, this bit measures 7/64 inch (0.1094 inches) in diameter and features a 118-degree standard point angle. The overall length is 1-13/16 inches, with a 13/16-inch flute length, making it shorter and more rigid than jobber-length bits. The straight-cylindrical shank fits standard drill chucks without modification. It carries an ANSI specification designation and belongs to the R40 Series.

This screw machine length drill bit is suited for close-tolerance drilling in tight spaces, on drill presses, turret lathes, and CNC machining centers where stub-length rigidity reduces deflection. The 2.5xD flute-to-diameter ratio and tapered web configuration with web thinning improve chip evacuation and reduce thrust in harder workpiece materials. The primary rated workpiece material is titanium, though the bit is classified as general purpose and performs well across a range of metals and alloys. It cuts right-hand with a regular spiral flute pattern. The package quantity is 1 bit per unit.

Key Features

• High speed steel construction with bright, uncoated finish for general-purpose metalworking
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Screw machine (stub) length at 1-13/16 inches overall for increased rigidity and reduced deflection
• 2.5xD flute-to-diameter ratio supports efficient chip removal in deep-hole applications
• Right-hand cut with regular spiral flute; fits standard straight-cylindrical chuck configurations
• Meets ANSI specification standards; rated for titanium and general-purpose metal drilling

Compatibility

Designed as a screw machine length replacement or production drill bit compatible with standard drill chucks, drill presses, turret lathes, and CNC equipment accepting straight-cylindrical shank tooling in the 7/64 inch diameter range.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tools. Secure the straight-cylindrical shank fully in the chuck before operation and verify chuck key is removed before starting the machine. Use appropriate cutting fluid or coolant compatible with the workpiece material to extend tool life, noting this bit does not support coolant-through operation. Follow applicable ANSI and shop safety standards when operating drilling equipment.