Hertel C.402.0525 Jobber Drill Bit 5.25 Mm Hss

Product Description

The HERTEL C.402.0525 is a high speed steel jobber-length drill bit ground to a 118-degree standard point angle and finished with an oxide coating. Sized at 5.25 mm (0.2067 inches) in diameter, it is a general-purpose cutting tool suited for drilling through mild steel, aluminum, wood, and similar materials. The straight-cylindrical shank seats securely in standard drill chucks, and the two-flute right-hand spiral geometry clears chips efficiently during through-hole drilling. Overall length is 95 mm with a flute length of 64 mm. This bit is intended for machinists, maintenance technicians, and fabricators working in shop or field environments.

This drill bit fits into general metalworking, maintenance, repair, and light fabrication applications. It is appropriate for use in drill presses, hand drills, and CNC machines that accept straight-shank tooling. The 5.25 mm diameter falls within the 5.00 mm to 6.00 mm size range, making it a practical choice when a metric hole size between standard fractional increments is required. No coolant-through capability is present, so external cutting fluid or lubrication is recommended when drilling ferrous materials.

Key Features

• 118-degree standard point angle for accurate self-starting entry on flat and curved surfaces
• High speed steel construction provides wear resistance across a broad range of workpiece materials
• Oxide coating reduces friction and offers light corrosion resistance during storage and use
• Two-flute right-hand spiral geometry promotes efficient chip evacuation
• Straight-cylindrical shank fits standard three-jaw drill chucks without an adapter
• General-purpose grade suited for maintenance, repair, and fabrication drilling tasks

Compatibility

Designed for use in any drill press, hand drill, or machine tool spindle accepting a straight-cylindrical shank in the 5.00 mm to 6.00 mm diameter class.

Installation Notes

Secure the shank fully within the drill chuck and tighten with a chuck key before operation. Apply cutting fluid or lubricant when drilling ferrous metals to extend tool life and reduce heat buildup. Ensure the workpiece is firmly clamped before beginning the cut. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows visible damage.