Hertel C.402.1210 Jobber Drill Bit 12.10 Mm Hss

Product Description

The HERTEL C.402.1210 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastic. It is manufactured from high speed steel (HSS) with an oxide coating that reduces friction and provides light corrosion resistance during use. The bit measures 12.10 mm (0.4764 inches) in diameter with a 118-degree standard point angle - the workhorse geometry for general drilling applications. Overall length is 149 mm (5.87 inches) with a flute length of 111 mm (4.37 inches). The straight-cylindrical shank seats securely in standard drill chucks, and the right-hand spiral flute geometry clears chips efficiently during through-hole and blind-hole operations.

This bit is suited for use in machine shops, maintenance facilities, and fabrication environments where a reliable general-purpose drill is needed across a range of materials. It is appropriate for use in drill presses, CNC machining centers, hand-held power drills, and manual drill presses. The 12.10 mm diameter falls within the 10.00 to 12.50 mm size range category, and the 0.4764 decimal-inch equivalent makes it a practical choice when working across metric and imperial measurement contexts. Machinists, maintenance technicians, and tool-and-die workers are the primary users of this type of bit.

Key Features

• 12.10 mm (0.4764 inch) diameter with 118-degree standard point for versatile general-purpose drilling
• High speed steel construction provides good hardness and wear resistance across common workpiece materials
• Oxide coating reduces friction at the cutting edge and offers light rust resistance during storage and use
• Right-hand spiral flute design promotes efficient chip evacuation in both through and blind holes
• Straight-cylindrical shank is compatible with standard 3-jaw and keyless drill chucks
• Jobber-length geometry balances reach and rigidity for general drilling tasks

Compatibility

Designed as a general-purpose jobber drill bit for use in standard drill presses, CNC machining centers, and hand-held power drills accepting a straight-cylindrical shank in the 12.10 mm diameter range.

Installation Notes

Installation of this drill bit is performed by machinists and maintenance technicians. Secure the straight-cylindrical shank fully into the drill chuck and tighten to the equipment manufacturer's specified clamping torque before operation. Ensure the workpiece is properly fixtured or clamped before beginning the cut. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged, as a compromised 118-degree point will produce oversized or poorly finished holes.