Hertel C.402.0190 Jobber Drill Bit 1.90 Mm Hss

Product Description

The HERTEL C.402.0190 is a high speed steel jobber-length drill bit ground to a 1.90 mm (0.0748 inch) diameter with a standard 118-degree point angle. An oxide coating reduces friction and provides light corrosion resistance during drilling operations. The two-flute spiral design evacuates chips efficiently in a right-hand cutting direction. At 51.00 mm overall length with a 25.00 mm flute length, this bit fits standard drill chucks and drill presses used in metalworking, maintenance, and fabrication environments. It is suited for general-purpose drilling in ferrous and non-ferrous metals, plastics, and similar materials.

This drill bit is intended for general-purpose applications across light manufacturing, MRO maintenance, machine shops, and trade service work. The straight cylindrical shank seats securely in keyed or keyless chucks without requiring a collet adapter. Its small diameter makes it well suited for pilot holes, precision hole placement, and work requiring tight dimensional tolerances in the 0.0500 to 0.1000 inch decimal inch size range. Machinists, millwrights, and maintenance technicians are the primary installers.

Key Features

• 1.90 mm (0.0748 inch) diameter for small-diameter general-purpose drilling
• 118-degree standard point angle for reliable self-centering on flat stock
• High speed steel construction handles heat generated in metal drilling
• Oxide coating reduces friction and provides light surface protection
• Two-flute right-hand spiral for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill bit compatible with any standard keyed or keyless drill chuck accepting a straight cylindrical shank in the 0.0500 to 0.1000 inch decimal inch size range.

Installation Notes

Install and remove drill bits only with the drill powered off and the chuck fully released. Secure the shank fully into the chuck jaws and tighten before operation. Use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Dispose of worn or chipped bits properly - do not attempt to regrind without proper drill grinding equipment.