Hertel C.402.0925 Jobber Drill Bit 9.25 Mm Hss

Product Description

The HERTEL C.402.0925 is a general-purpose jobber-length drill bit designed for production drilling in metal fabrication, maintenance, and machining operations. Manufactured from high speed steel with an oxide coating for added lubricity and surface protection, it features a 118-degree standard point angle suited to a wide range of ferrous and non-ferrous materials. At 9.25 mm (0.3642 inches) in diameter and 127 mm (5 inches) overall length, this right-hand spiral-flute drill covers the most common range of through-hole and blind-hole applications encountered in trade and shop environments. Installation and use are handled by machinists, tool-and-die technicians, and maintenance mechanics.

This drill bit is suited for general-purpose use in drill presses, CNC machining centers, and hand-held power drills where a straight-cylindrical shank can be chucked directly. Its two-flute spiral geometry promotes efficient chip evacuation during through-hole drilling in mild steel, aluminum, brass, and similar materials. The oxide surface finish reduces friction at the cutting edge during moderate-speed operations without the need for specialized coolant delivery, as coolant-through is not supported on this design.

Key Features

• 9.25 mm (0.3642 inch) diameter covers the 9.00 to 10.00 mm size range
• 118-degree standard point angle for general-purpose material entry
• High speed steel construction for durability across common workpiece materials
• Oxide coating reduces friction and provides mild corrosion resistance
• Right-hand, two-flute spiral geometry for efficient chip clearing
• Straight-cylindrical shank fits standard three-jaw drill chucks directly

Compatibility

Designed as a general-purpose jobber drill for use in standard three-jaw chucks accepting straight-cylindrical shanks across drill presses, CNC equipment, and portable power drills within the 9.00 to 10.00 mm drill size range.

Installation Notes

Secure the straight-cylindrical shank fully in a properly sized chuck before operation and confirm the chuck key is removed before powering the spindle. Use appropriate cutting fluid or coolant for the workpiece material when drilling ferrous metals to extend tool life. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows visible damage. Follow applicable shop safety standards and machine guarding requirements during all drilling operations.