Hertel C.402.0430 Jobber Drill Bit 4.30 Mm Hss

Product Description

The HERTEL C.402.0430 is a high speed steel jobber-length drill bit ground to a 118-degree standard point angle and finished with an oxide coating for improved lubricity and surface hardness. Sized at 4.30 mm (0.1693 inches) in diameter, it runs a spiral flute pattern with a right-hand cutting direction. Overall length is 83 mm with a 54 mm flute length, giving it the reach typical of jobber-series drills. The straight-cylindrical shank seats directly into standard drill chucks without adapters. This bit is a general-purpose tool suited for machinists, maintenance mechanics, and metalworking tradespeople working in production or field environments.

The C.402.0430 is designed for general-purpose drilling in a wide range of metallic and non-metallic materials where a standard jobber-length drill is the correct tool. It fits into the 4.00 mm to 5.00 mm metric size range, making it a common selection on fabrication floors, maintenance shops, and job sites where metric fastener clearance holes or pilot holes are required. The oxide finish reduces friction and helps resist light chip welding during moderate-feed drilling operations. It is sold individually per package with a minimum order quantity of 12 pieces per order.

Key Features

• 4.30 mm (0.1693 inches) diameter, falling in the 4.00 mm to 5.00 mm metric drill range
• 118-degree standard point angle for general-purpose metal drilling
• High speed steel construction with oxide coating for reduced friction and improved wear resistance
• Spiral flute, right-hand cut with 54 mm flute length for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• 83 mm overall length matches jobber-series reach requirements

Compatibility

Designed as a general-purpose jobber drill bit compatible with any standard drill chuck accepting a straight-cylindrical shank in the 4.00 mm to 5.00 mm diameter range.

Installation Notes

Installation is performed by machinists or maintenance mechanics using a standard keyed or keyless drill chuck on a drill press, hand drill, or CNC machine. Ensure the shank is fully seated and the chuck is tightened securely before operation. Use appropriate cutting fluid or cutting oil when drilling ferrous metals to extend tool life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.