Hertel C.402.1220 Jobber Drill Bit 12.20 Mm Hss

Product Description

The HERTEL C.402.1220 is a general-purpose jobber-length drill bit designed for drilling operations in metal, wood, and similar materials. It measures 12.20 mm (0.4803 inches) in diameter with a 149 mm overall length and a 111 mm flute length. The 118-degree standard point geometry delivers reliable starting and consistent hole quality across a wide range of workpiece materials. The high speed steel construction with an oxide coating provides basic lubricity and surface protection during cutting. This drill bit is suited for use in drill presses, CNC machining centers, and handheld power drills used in fabrication and maintenance environments.

This jobber drill is intended for general-purpose drilling applications across manufacturing, fabrication, maintenance, and repair operations. The straight-cylindrical shank seats securely in standard three-jaw chucks and keyless chucks without special collets or adapters. With a right-hand spiral flute configuration and two-flute design, the bit clears chips efficiently through the flute channel during through-hole and blind-hole drilling. It falls within the 10.00 mm to 12.50 mm drill bit size range and is sold individually.

Key Features

• 12.20 mm diameter with 118-degree standard point angle for broad material compatibility
• High speed steel construction with oxide coating for surface protection and basic lubricity
• Two right-hand spiral flutes promote efficient chip evacuation
• 149 mm overall length with 111 mm flute length for jobber-length reach
• Straight-cylindrical shank fits standard three-jaw and keyless chucks
• General-purpose grade suitable for drill presses, CNC equipment, and handheld drills

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any machine or handheld drill equipped with a standard three-jaw or keyless chuck sized to accept a straight-cylindrical shank in the 10.00 mm to 12.50 mm diameter range.

Installation Notes

Install and remove drill bits only with the machine powered off and the spindle fully stopped. Secure the straight-cylindrical shank firmly in the chuck before operation to prevent slippage or runout. Wear appropriate eye protection per shop safety standards when operating any rotary cutting tool. Inspect the cutting edges for wear or damage before each use and replace bits that show chipping or dullness to maintain hole quality.