Hertel C.401.0020 Jobber Drill Bit 0.20 Mm Hss

Product Description

The HERTEL C.401.0020 is a high speed steel jobber drill bit designed for precision drilling in metal, plastic, and general-purpose materials. It carries a 0.20 mm diameter with a standard 118-degree split point and a bright, uncoated finish. The spiral flute geometry clears chips efficiently during drilling. At 19.00 mm overall length, this is a micro-diameter drill intended for applications requiring tight dimensional control. The straight-cylindrical shank provides secure clamping in standard drill chucks and collet holders. This bit is suited for machinists, toolroom technicians, and production drilling operators working with close-tolerance small-diameter holes.

This jobber drill is used in light-duty machining operations, bench drilling, and CNC drilling setups where micro-diameter holes are required. Its general-purpose grade and standard geometry make it a reliable choice for drilling non-hardened ferrous and non-ferrous materials in shop and production environments. The right-hand cutting direction is compatible with standard spindle rotation on bench-top drill presses, machining centers, and hand drills with precision collets.

Key Features

• 0.20 mm diameter for micro-precision drilling applications
• 118-degree standard point angle for general-purpose material entry
• High speed steel construction provides wear resistance in non-hardened materials
• Bright, uncoated finish for general-purpose use without specialized coatings
• Two-flute spiral design promotes efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a general-purpose jobber drill bit compatible with standard drill chucks, precision collet systems, and CNC tool holders accepting straight-cylindrical shanks in the micro-diameter range.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. At micro diameters, feed rate and spindle speed must be carefully controlled to prevent bit breakage. Never exceed the material and speed ratings appropriate for high speed steel tooling.