Hertel 74460072 Solid Carbide Jobber Drill Bit 10 Mm

Product Description

The HERTEL 74460072 is a solid carbide jobber-length drill bit designed for precise, high-performance drilling in demanding industrial and trade applications. It features a 10 mm diameter (0.3937 inches) with a standard 118-degree drill point angle and a right-hand, spiral flute design for efficient chip evacuation. The bright finish solid carbide construction at material grade C2 provides rigidity and wear resistance suited for drilling hard or abrasive materials. With an overall length of 4.5 inches and a flute length of 2.875 inches, this bit fits standard straight-cylindrical shank tool holders. A web-thinned, tapered web configuration reduces entry force and helps maintain accurate hole positioning.

This jobber-length drill bit is intended for use in machine shop, fabrication, and maintenance environments where consistent bore quality and tight tolerances are required. The 10 mm diameter falls within the 0.3500 to 0.4000 inch decimal range, making it a common size for structural, tooling, and fixture drilling operations. It is suited for use in CNC machining centers, drill presses, and manual milling machines. Machinists, tool-and-die workers, and maintenance technicians handling metal fabrication tasks are the typical end users. No coolant-through capability is present, so external coolant or cutting fluid application is recommended when drilling harder materials to manage heat buildup.

Key Features

• Solid carbide construction at C2 material grade for rigidity and wear resistance in hard materials
• Standard 118-degree point angle with web-thinned, tapered web for reduced thrust and accurate hole entry
• Bright finish coating - no added coating thickness that would affect tight diameter tolerances
• Diameter tolerance of -0.0005 to 0.0000 inches for consistent, close-fit bore results
• Right-hand, regular spiral flute design promotes reliable chip evacuation in through and blind holes
• Straight-cylindrical shank for compatibility with standard drill chucks and collet holders

Compatibility

Designed as a general-purpose jobber-length drill bit for use with standard straight-shank drill chucks and collet systems accepting a 0.3937-inch shank diameter, suitable for CNC and manual machine tool setups.

Installation Notes

This drill bit is installed and serviced by machinists or skilled tradespeople operating machine tools. Secure the shank firmly in the chuck or collet before operation, and confirm runout is within acceptable limits before drilling. Because this bit does not have coolant-through capability, apply cutting fluid externally when working with ferrous or hardened materials to prevent premature wear. Inspect the cutting edges for chipping or wear before each use, as solid carbide bits can fracture if run at incorrect speeds or feeds.