Precision Twist Drill 5998953 Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5998953 is a screw machine length drill bit designed for high-performance drilling in metal fabrication and machining applications. Built from high speed steel with a bright, uncoated finish, it measures 0.332 inches in diameter with a 118-degree standard point angle and a 1-11/16 inch flute length. The overall length is 3 inches. The web-thinned, tapered web configuration reduces thrust at the point and promotes clean entry, particularly in harder workpiece materials. This bit meets ANSI standards and is rated for general-purpose use with high-performance designation.

This drill bit is suited for use in screw machine operations, CNC drilling setups, and manual drill press applications where a shorter, more rigid stub-length tool is preferred over a jobber-length bit. The Series R42 right-hand spiral flute design is appropriate for drilling titanium and similar demanding materials. Its straight cylindrical shank fits standard drill chucks without modification. The 2.5xD flute-to-diameter ratio provides adequate chip clearance in moderate-depth holes typical of screw machine work.

Key Features

• 0.332 inch diameter, ANSI-compliant screw machine length format
• 118-degree standard point angle with web thinning for reduced entry thrust
• High speed steel construction rated for titanium and comparable workpiece materials
• Bright, uncoated finish for general-purpose use across a range of metals
• Right-hand cut spiral flute with tapered web configuration for efficient chip evacuation
• Straight cylindrical shank compatible with standard drill chucks

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for screw machine operations requiring a 0.332 inch diameter, straight-shank tool in the 0.3000 to 0.3500 inch drill bit size range per ANSI standards.

Installation Notes

Installation is performed by machinists and tool-and-die professionals using standard drill chucks on screw machines, drill presses, or CNC machining centers. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify chuck jaw condition and shank seating before operation. Follow applicable shop safety and machine guarding requirements when drilling titanium or similar materials.