Cle-line C18043 Letter P Hss Jobber Drill Bit 135 Deg

Product Description

The CLE-LINE C18043 is a Letter P jobber-length drill bit designed for high-performance drilling in steel and cast iron. Built from high speed steel (HSS) with a black and gold oxide coating, it runs a 135-degree split point that self-centers on contact and reduces walking without a center punch. The web-thinned, tapered web geometry lowers thrust requirements and improves chip evacuation. At 0.3230 inches in diameter and 4.625 inches overall length, this bit fits standard drill chucks and is suited for production and maintenance drilling where precision and tool life matter. Licensed trades and machinists working in fabrication, mechanical, or HVAC sheet-metal applications will find this a reliable daily-use bit.

The C18043 is built for drilling steel and cast iron in both shop and field environments. Its straight cylindrical shank and 3.3125-inch regular spiral flute length make it compatible with standard 3-jaw drill chucks on benchtop drill presses, magnetic drills, and hand-held power drills. The right-hand cutting direction and two-flute spiral configuration handle through-hole and clearance-hole work in structural steel, pipe flanges, electrical enclosures, and similar ferrous materials common in trade applications.

Key Features

• 135-degree split point self-centers and eliminates pilot-hole requirement on most ferrous materials
• Web-thinned tapered web reduces axial thrust and improves chip flow
• Black and gold oxide coating provides lubricity and surface hardness for extended tool life
• Two-flute regular spiral geometry clears chips efficiently in through-hole drilling
• Straight cylindrical shank fits standard drill chucks without adapters
• Meets ASME B94.11M and DIN 338 standards for dimensional accuracy and performance

Compatibility

Designed as a heavy-duty OEM-style jobber drill bit for use in standard drill chucks; primary workpiece materials are steel and cast iron as specified by the manufacturer.

Installation Notes

This bit is installed and operated by machinists, pipefitters, electricians, HVAC technicians, and other trades performing metal drilling. Always secure the workpiece before drilling and use appropriate cutting fluid or coolant when drilling ferrous metals to extend bit life. Inspect the cutting edges before each use and replace if chipping or dulling is observed. Disconnect or de-energize the drill before changing bits.