Precision Twist Drill 5999404 Jobber Drill Bit Wire 37

Product Description

The PRECISION TWIST DRILL 5999404 is a jobber length drill bit sized to wire gauge 37, equal to 0.1040 inches in diameter. Made from high speed steel with a steam oxide coating, this bit is built for general-purpose drilling in a wide range of ferrous and non-ferrous materials. The 118-degree standard point angle and web-thinned, tapered web geometry reduce entry force and improve centering. Overall length is 2.5 inches with a 1.4375-inch spiral flute and a straight-cylindrical shank. Licensed machinists, maintenance technicians, and trade professionals use this bit for production and repair drilling applications where consistent hole quality is required.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The regular spiral flute and right-hand cut make it compatible with standard drill presses, CNC machines, and hand-held power drills. It falls within the R10A-R15A-R18A series and meets ANSI and NAS 907 standards, making it appropriate for aerospace and industrial maintenance environments where specification compliance is required.

Key Features

• Wire gauge 37 diameter at 0.1040 inches for precise small-hole drilling
• High speed steel construction provides hardness and heat resistance in general-purpose drilling
• Steam oxide coating reduces friction and improves chip flow
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and better centering
• Right-hand cut with regular spiral flute and straight-cylindrical shank
• Meets ANSI and NAS 907 specifications for industrial and aerospace use

Compatibility

Compatible with standard 3-jaw chucks and collet systems accepting a 0.1040-inch straight-cylindrical shank. Suitable for use in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Part of the R10A-R15A-R18A series per NAS 907 and ANSI standards.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with drill press, CNC, or hand-tool operation. Secure the shank fully in the chuck before operation and verify spindle speed is appropriate for the workpiece material and bit diameter. Do not exceed the maximum drilling depth of 1.4375 inches without retracting to clear chips. Eye protection and appropriate guarding must be used per applicable workplace safety standards.