Cle-line C18454 7/16 Inch Hss Jobber Drill Bit 135 Degree

Product Description

The CLE-LINE C18454 is a heavy-duty jobber length drill bit designed for high-production drilling in metal fabrication and general trade work. Built from high speed steel with a gold oxide coating, it runs a 135-degree split point that starts on contact without a center punch. The parabolic flute geometry accelerates chip evacuation, reducing heat buildup during deep passes. At 5.5 inches overall length with a 4.0625-inch flute length, it handles standard jobber-depth holes in a wide range of materials. Machinists, pipefitters, and electricians reach for this bit when drilling aluminum, non-ferrous metals, and plastics where clean entry and fast chip clearance matter most.

The C18454 is suited for both hand-held drilling with a heavy-duty drill motor and stationary drill press work. Its primary target materials include aluminum, soft non-ferrous metals, and thermoplastics, aligning with material codes K, N, and P. The straight cylindrical shank seats in standard three-jaw drill chucks without adapters. The web-thinned, tapered web reduces thrust requirements, making it practical for cordless drill use in the field as well as bench work in a shop environment.

Key Features

• 135-degree split point for self-centering starts on hard and soft materials
• Parabolic flute design for aggressive chip evacuation and reduced heat
• Gold oxide coating improves lubricity and extends tool life versus bright finish
• Web-thinned tapered web lowers drilling thrust and reduces bit walking
• Heavy-duty HSS grade meets ASME B94.11M and DIN 338 standards
• Straight cylindrical shank fits standard three-jaw chucks directly

Compatibility

Designed as a direct-fit replacement or upgrade for standard 7/16 inch jobber length drill bits in any three-jaw chuck application; primary workpiece materials are aluminum, non-ferrous metals, and plastics (material codes K, N, P).

Installation Notes

Secure the shank fully in a three-jaw chuck before use and verify the bit runs true before engaging the workpiece. Always wear eye protection and use appropriate cutting fluid or lubricant when drilling metals. Reduce feed pressure as the point breaks through to prevent grab and bit damage. Inspect the cutting edges before each use and replace when chipping or dullness is evident.