Hertel 74460056 Solid Carbide Jobber Drill Bit 9 Mm

Product Description

The HERTEL 74460056 is a solid carbide jobber-length drill bit designed for precision hole-making in demanding materials. Built from C2-grade carbide with a bright finish, it delivers consistent performance in ferrous and non-ferrous metals, plastics, and composites. The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve centering accuracy. With an overall length of 4 inches and a flute length of 2.5 inches, it fits standard jobber-length drill chucks. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole operations. Machinists and toolroom technicians specify this bit for general-purpose CNC and manual drilling applications where carbide hardness and dimensional consistency are required.

The 74460056 is suited for production drilling on machining centers, drill presses, and manual lathes where a straight-cylindrical shank is required. Its 9 mm diameter (0.3543 inches) falls within the 9.00 to 10.00 mm drill bit size range, making it a standard selection for metric hole patterns in metal fabrication, mold and die work, and precision assembly. The general-purpose grade designation means it performs across a broad range of workpiece materials without requiring specialized coolant delivery, as coolant-through is not supported on this bit.

Key Features

• Solid carbide construction, C2 material grade - suitable for hardened and abrasive workpiece materials
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and self-centering entry
• Bright (uncoated) finish maintains tight diameter tolerance of -0.0005 to 0.0000 inches
• Regular right-hand spiral flutes provide effective chip evacuation in through and blind holes
• Straight-cylindrical shank (0.3543 inches diameter) fits standard ER collets and Jacobs-style chucks
• 4-inch overall length with 2.5-inch flute length - standard jobber proportions for versatile reach

Compatibility

Designed as a general-purpose jobber-length drill bit for use in CNC machining centers, drill presses, and manual machines accepting a straight-cylindrical shank in the 9.00 to 10.00 mm diameter range.

Installation Notes

Installation and setup should be performed by a qualified machinist or toolroom technician. Secure the straight-cylindrical shank firmly in a collet or chuck rated for the shank diameter before operation; runout should be checked and minimized to protect carbide from chipping. Carbide tooling is brittle - avoid interrupted cuts, side loading, or impacts that would be acceptable with high-speed steel bits. Spindle speed and feed rate selection should follow published carbide drilling parameters for the specific workpiece material.