Hertel 83245977 Carbide Jobber Drill Letter Z 0.4130 in

Product Description

The HERTEL 83245977 is a solid carbide jobber-length drill bit sized to letter Z, with a decimal diameter of 0.4130 inches. It features a 118-degree standard point angle with web thinning on a tapered web, which reduces entry force and improves chip clearance at the start of the cut. The bright, uncoated finish leaves the carbide surface exposed for use in applications where coating adhesion or contamination is a concern. With an overall length of 4.5 inches and a flute length of 2.875 inches, this two-flute, right-hand spiral drill is suited for machinists, tool-and-die shops, and production drilling operations requiring tight dimensional control.

This drill is rated for aluminum and non-ferrous workpiece materials, making it a practical choice for drilling copper, brass, aluminum alloy, and similar materials where carbide's hardness and edge retention outperform high-speed steel. The straight cylindrical shank at 0.4130 inches diameter fits standard drill chucks and collet holders without adapter sleeves. It carries a C2 material grade designation, placing it in the general-purpose solid carbide category appropriate for moderate cutting speeds and consistent hole quality in production or job-shop environments.

Key Features

• Letter Z size with 0.4130-inch decimal diameter and tight tolerance of -0.0005 to 0.0000 inches
• 118-degree standard point with web thinning and tapered web configuration for reduced thrust
• Solid carbide construction, C2 material grade, for extended tool life in non-ferrous materials
• Bright, uncoated finish — no coating buildup or compatibility concerns with cutting fluids
• Regular right-hand spiral flute, 2-flute design, with 2.875-inch flute length for chip evacuation
• No coolant-through — external flood or mist coolant application applies

Compatibility

Designed as an OEM-style replacement or direct substitute jobber drill for any standard drill press, CNC machining center, or hand drill with a chuck or collet accepting a 0.4130-inch straight cylindrical shank, primarily targeting aluminum and non-ferrous workpiece materials.

Installation Notes

Installation is performed by machinists or tool operators following standard tooling change procedures. Secure the straight shank fully into a drill chuck or collet holder, verifying runout before cutting. Power down the spindle and confirm zero rotation before inserting or removing the bit. Avoid applying the drill to ferrous materials outside its rated workpiece material range, as this can cause premature edge failure in carbide tooling.