Precision Twist Drill 5999186 Wire 75 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5999186 is a wire gauge size 75 jobber length drill bit designed for precision drilling in metalworking applications. The bit measures 0.0210 inches in diameter with a 1 inch overall length and a standard 118-degree split-point angle. Manufactured from high speed steel with a steam oxide coating, it provides adequate lubricity and corrosion resistance during dry drilling operations. The right-hand spiral flute geometry and web-thinned, tapered web construction reduce thrust and improve chip evacuation in small-diameter hole work. This bit is intended for use by machinists, tool and die professionals, and maintenance technicians requiring accurate, repeatable small-hole drilling.

This drill bit is suited for drilling operations in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its general-purpose grade and ANSI-standard geometry make it a practical choice for production floor, job shop, and field maintenance environments where wire gauge sizes are specified. The 1/4 inch flute length supports a maximum drilling depth of 0.25 inches, appropriate for thin stock, precision fixtures, and small component fabrication. The straight-cylindrical shank fits standard drill chucks without modification.

Key Features

• Wire gauge size 75 with 0.0210 inch diameter for precise small-hole applications
• High speed steel construction with steam oxide coating for improved lubricity
• 118-degree standard point angle with web-thinned, tapered web to reduce entry thrust
• Right-hand cut, regular spiral, 2-flute design for efficient chip removal
• 1/4 inch flute length supports maximum 0.25 inch drilling depth
• Straight-cylindrical shank compatible with standard drill chucks
• Meets ANSI specification standards; Series R10-R15-R18

Compatibility

Designed as a general-purpose jobber length drill bit for use in standard drill chucks accepting a 0.0210 inch straight-cylindrical shank. Suitable across workpiece materials coded P, M, K, N, and S per ISO material classification.

Installation Notes

This bit is installed by machinists or maintenance technicians using a standard keyless or keyed drill chuck on a drill press, CNC machining center, or hand drill. Ensure the machine is powered down and the chuck is secured before bit installation or removal. Coolant-through is not supported; use appropriate cutting fluid applied externally when drilling stainless steel, superalloys, or titanium to manage heat buildup. Do not exceed the 0.25 inch maximum drilling depth per the flute length specification.