Hertel 74459884 Solid Carbide Jobber Drill Bit 1 Mm

Product Description

The HERTEL 74459884 is a solid carbide jobber-length drill bit engineered for precision hole-making in demanding shop and field applications. Ground to a 118-degree standard point angle with web thinning for improved center penetration, this bit runs in a right-hand cutting direction with a regular spiral flute pattern. The bright finish leaves the carbide substrate exposed for general-purpose use across a wide range of work materials. At 1 mm (0.0394 inches) in diameter and 1.5 inches overall length, it suits fine-tolerance drilling tasks where bit deflection and runout must be minimized. Material grade C2 carbide provides the hardness and edge retention needed for production or repetitive drilling cycles.

This bit is used in machine shop, toolroom, and light manufacturing environments where small-diameter, tight-tolerance holes are required. Typical applications include fixture work, circuit board drilling, precision metalworking, and component fabrication. Its straight-cylindrical shank seats directly into standard drill chucks and collet holders, making it compatible with CNC machining centers, drill presses, and bench-top micro drills. The 2-flute spiral configuration promotes efficient chip evacuation in short-hole drilling at this diameter range.

Key Features

• Solid carbide construction at material grade C2 for hardness and wear resistance
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and improved starting accuracy
• Bright coating preserves carbide surface and suits general-purpose work material compatibility
• Right-hand cut, regular spiral, 2-flute design promotes controlled chip evacuation
• Straight-cylindrical shank fits standard chucks and collet holders without modification
• Diameter tolerance of -0.0005 to 0.0000 inches supports tight-fit hole specifications

Compatibility

Designed as a general-purpose jobber-length drill bit for use in drill presses, CNC machining centers, and hand-held drilling equipment accepting a straight-cylindrical shank at 0.0394 inches shank diameter.

Installation Notes

Installation and use should be performed by machinists or qualified trades personnel familiar with small-diameter carbide tooling. Secure the shank fully in a collet or drill chuck rated for the spindle speed required at this diameter before operation. Carbide is brittle at this size — avoid side loading, interrupted cuts without proper feed control, or dropping the bit on hard surfaces. Follow the machine manufacturer and applicable shop safety guidelines for RPM selection and coolant use.