Precision Twist Drill 5998094 Jobber Drill Bit 68 Hss

Product Description

The PRECISION TWIST DRILL 5998094 is a jobber-length twist drill bit in wire gauge size 68, equivalent to 0.0310 inches (1/32 inch) diameter. Built from high-speed steel with a bright, uncoated finish, it features a standard 118-degree split point and a right-hand spiral flute optimized for general-purpose drilling. The straight cylindrical shank measures 1/32 inch in diameter and 0.875 inches in length. Overall length is 1.375 inches with a 0.500-inch flute length and a maximum drilling depth of 0.500 inches. Licensed machinists, tool-and-die technicians, and precision metalworkers install this bit where accurate small-diameter hole placement is required.

This bit is suited for drilling steel, cast iron, non-ferrous metals, superalloys, and titanium in both production and maintenance environments. The regular spiral, 2-flute design and 16xD flute-to-diameter ratio provide reliable chip evacuation in shallow-hole applications. Web-thinned construction reduces thrust requirements, making it practical for small drill press setups, CNC machining centers, and hand-held precision drilling where minimal deflection is critical. Coolant-through capability is not available on this model.

Key Features

• Wire gauge size 68 (0.0310 inches / 1/32 inch) for precise small-diameter drilling
• High-speed steel construction for durability across steel, cast iron, non-ferrous metals, and titanium
• 118-degree standard point angle for general-purpose material entry
• Right-hand cut, 2-flute regular spiral for consistent chip removal
• Web-thinned, tapered web design reduces cutting thrust at small diameters
• Straight cylindrical shank for compatibility with standard drill chucks
• ANSI-compliant construction per Series R10H-R18H specification

Compatibility

Designed as a general-purpose jobber-length drill bit fitting standard drill chucks that accept a 1/32-inch straight cylindrical shank. Suitable for use in drill presses, machining centers, and hand-held drilling equipment configured for small-diameter wire-gauge bits.

Installation Notes

Installation is performed by machinists or technicians using a drill press, CNC spindle, or precision hand drill with a chuck rated for 1/32-inch shank diameters. Secure the shank fully in the chuck before operation to prevent slippage and bit breakage at this small diameter. At 0.0310 inches, the bit is highly susceptible to deflection and breakage under side load — use a center punch or spotting drill to establish the entry point before drilling. Always bring the spindle to a full stop before changing bits.