Cleveland C03060 Jobber Drill Bit No 1 Hss 0.2280 in

Product Description

The CLEVELAND C03060 is a jobber-length twist drill bit designed for general-purpose hole-making in a wide range of materials. Built from high speed steel with a bright uncoated finish, this bit measures 0.2280 inches in diameter and corresponds to wire gauge size No. 1. The 118-degree standard point angle is suited for most common drilling applications. At 3.875 inches overall length with a 2.625-inch flute length, it fits standard drill chucks without modification. The web-thinned, tapered web construction reduces thrust force at the cutting tip. It is installed and used by machinists, maintenance technicians, plumbers, electricians, and HVAC technicians working with aluminum and similar materials.

This bit is intended for use on aluminum as its primary workpiece material, though the general-purpose grade makes it suitable for a broad range of softer metals, plastics, and wood composites. The fast spiral flute promotes efficient chip evacuation during through-hole drilling. With a straight-cylindrical shank diameter of 0.2280 inches, it seats in standard 3-jaw drill chucks and collet-style tool holders commonly found in hand drills, drill presses, and CNC drilling setups. It is sold individually and does not require coolant-through capability for standard use.

Key Features

• Wire gauge size No. 1 with 0.2280 inch diameter for precise hole sizing
• 118-degree standard point angle for general-purpose drilling
• High speed steel construction with bright uncoated finish
• Fast spiral flute with web-thinned tapered web to reduce thrust and improve chip clearance
• Straight-cylindrical shank for compatibility with standard drill chucks and collets
• Conforms to ASME B94.11M and ANSI specification designation

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard 3-jaw drill chucks and collet holders accepting a 0.2280 inch straight-cylindrical shank, for use on drill presses, hand drills, and CNC drilling equipment.

Installation Notes

Install the bit in a properly rated drill chuck or collet, ensuring the shank is fully seated and the chuck is tightened before operation. Always power down or unplug the drilling equipment before changing bits. Use appropriate work-holding to secure the workpiece and prevent rotation during drilling. Eye protection and compliance with applicable shop safety standards are required when operating drill bits.