Hertel C.402.0740 Jobber Drill Bit 7.40 Mm Hss

Product Description

The HERTEL C.402.0740 is a high speed steel jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. It carries a 118-degree standard point angle, which suits a wide range of everyday drilling applications without requiring a specialized grind. The oxide coating provides a light layer of surface protection that helps reduce friction during cutting. At 7.40 mm (0.2913 inches) in diameter with an overall length of 111 mm (4.37 inches) and a flute length of 78 mm (3.07 inches), this bit fits standard drill chucks and drill presses used in fabrication, maintenance, and trade work.

This jobber drill is suited for general-purpose drilling tasks encountered in HVAC, plumbing, electrical, and mechanical trades. The straight cylindrical shank seats securely in standard keyed or keyless chucks. The two-flute spiral design clears chips efficiently during through-hole and blind-hole drilling. It is appropriate for use in handheld drills and drill presses across residential and light commercial service and installation work where a metric drill size in the 7.00 mm to 8.00 mm range is required.

Key Features

• 7.40 mm (0.2913 inch) diameter fits the 7.00 mm to 8.00 mm drill size range
• 118-degree standard point angle for general-purpose entry without special grinding
• High speed steel construction handles a broad range of common workpiece materials
• Oxide coating reduces surface friction during drilling operations
• Two-flute right-hand spiral design promotes efficient chip evacuation
• Straight cylindrical shank compatible with standard drill chucks

Compatibility

Designed as a general-purpose jobber drill for use with any standard drill press or handheld drill accepting a straight cylindrical shank in the 7.00 mm to 8.00 mm size range.

Installation Notes

Secure the shank fully in the chuck and verify the bit runs true before drilling. Always wear appropriate eye protection when operating drill bits. Match spindle speed to the workpiece material — harder materials require lower RPM. Inspect the cutting edges before use and replace the bit if the point shows signs of chipping or excessive wear.