Hertel C.402.0115 Jobber Drill Bit 1.15 Mm Hss

Product Description

The HERTEL C.402.0115 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel with an oxide finish for added surface hardness and basic corrosion resistance, this bit features a standard 118-degree point angle that suits a broad range of common materials. The straight cylindrical shank seats securely in standard drill chucks. At 44 mm overall length with a 19 mm flute length, it is sized for shallow-to-moderate depth holes in the sub-1.5 mm range. The two-flute spiral configuration efficiently evacuates chips during drilling.

This bit is intended for light-duty production and maintenance drilling tasks where a small-diameter hole is required. Its 1.15 mm diameter (0.0453 inch decimal equivalent) places it in the fine-bore category, commonly used in instrument work, electronics assembly, sheet metal fabrication, and precision maintenance applications. It is suitable for use in bench drill presses, CNC drilling centers, and hand-held power drills equipped with a precision chuck capable of holding small-diameter shanks.

Key Features

• 1.15 mm (0.0453 inch) diameter for fine-bore drilling applications
• 118-degree standard point angle for general-purpose material compatibility
• High speed steel construction with oxide coating for surface durability
• Two-flute right-hand spiral flute design for efficient chip evacuation
• Straight cylindrical shank fits standard and precision drill chucks
• General-purpose grade suitable for metal, plastic, and wood substrates

Compatibility

Designed as a general-purpose jobber drill bit compatible with any drill press, CNC machine, or hand-held drill fitted with a precision chuck capable of holding a straight cylindrical shank at 1.15 mm diameter.

Installation Notes

Secure the workpiece firmly before drilling to prevent walking at this small diameter. Use the lowest practical feed rate and maintain consistent pressure to avoid bit deflection or breakage. Ensure the chuck is fully tightened and rated for small-diameter tooling. Coolant-through capability is not supported on this bit; external cutting fluid may be applied manually when drilling harder metals.