Precision Twist Drill 5999417 Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5999417 is a screw machine length drill bit designed for high-performance drilling in demanding trade and industrial applications. Manufactured from high speed steel with a bright, uncoated finish, it features a 0.0935-inch diameter, a 118-degree standard point angle, and a right-hand spiral flute configuration. The web-thinned, tapered web design reduces thrust and improves chip evacuation. At 1.75 inches overall length with a 0.75-inch flute length, this stub-length bit offers increased rigidity over jobber-length alternatives, making it well suited for precision hole placement in tight workspaces. It meets ANSI standards and is rated for general purpose use with high-performance capability.

This drill bit is appropriate for use in screw machine operations, production drilling, and maintenance applications where short-length rigidity is required. Its 2.5xD flute-to-diameter ratio and web-thinned point make it particularly effective when drilling titanium and other challenging workpiece materials. It is used by machinists, HVAC fabricators, plumbers, and electricians when precise, clean entry holes are needed in metal components or enclosures. The straight-cylindrical shank fits standard drill chucks without adapters.

Key Features

• 0.0935-inch diameter with 118-degree standard point angle for clean, accurate entry
• High speed steel construction provides durability across a range of metalworking tasks
• Web-thinned, tapered web reduces drilling thrust and improves chip flow
• Screw machine length body increases rigidity and minimizes deflection in short-reach applications
• Right-hand spiral flute promotes efficient chip evacuation
• Bright, uncoated finish suitable for general purpose use; ANSI compliant

Compatibility

Designed as a Series R41 screw machine length drill bit rated for use with titanium as the primary workpiece material; fits standard straight-cylindrical drill chucks and screw machine setups.

Installation Notes

Install this bit in a properly sized drill chuck, ensuring the straight-cylindrical shank is fully seated and the chuck is firmly tightened before operation. Use appropriate cutting fluid or coolant for the workpiece material when drilling metal to extend bit life and maintain hole quality. Inspect the cutting edges and point for wear before each use and replace the bit if chipping or dulling is observed. Follow applicable shop safety standards and wear appropriate eye protection during all drilling operations.