Precision Twist Drill 5999157 Jobber Drill Bit 25 Hss

Product Description

The PRECISION TWIST DRILL 5999157 is a jobber-length drill bit sized to wire gauge number 25, with a decimal diameter of 0.1495 inches. Made from high speed steel with a bright uncoated finish, it features a 118-degree standard point angle and a regular spiral flute configuration for efficient chip evacuation. The two-flute, right-hand cutting geometry is well suited to general-purpose drilling in production and maintenance environments. This bit is installed by machinists, tool-room technicians, and skilled tradespeople working with drill presses, CNC machines, and hand-held power drills.

This drill bit is designed for use across a broad range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. With an overall length of 3 inches and a maximum drilling depth of 1.875 inches, it handles typical through-hole and blind-hole applications in light manufacturing, maintenance, and fabrication work. The straight-cylindrical shank fits standard drill chucks without additional tooling adapters.

Key Features

• Wire gauge size 25 with 0.1495-inch decimal diameter for precise hole sizing
• 118-degree standard point angle with web-thinned, tapered web for easier entry and reduced thrust
• High speed steel construction for durability across general-purpose drilling applications
• Bright uncoated finish compatible with cutting fluids and standard lubrication practices
• Regular spiral, two-flute design promotes efficient chip removal during drilling
• Straight-cylindrical shank fits standard keyed and keyless drill chucks

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accepting a 0.1495-inch straight-cylindrical shank. Suitable for drill presses, CNC drilling machines, and hand-held power drills across the R10P, R15P, and R18P series designations. Meets ANSI standards.

Installation Notes

Machinists and maintenance technicians should ensure the drill chuck is fully tightened and the workpiece is securely clamped before beginning any drilling operation. Power down the machine and confirm it has come to a complete stop before changing or inspecting bits. Apply an appropriate cutting fluid or lubricant when drilling steel, stainless steel, or other hard materials to extend bit life and improve hole finish. Dispose of worn bits in accordance with shop safety procedures for sharp metal objects.