Cle-line C97317 5/16 Inch Hss Tin Jobber Drill Bit

Product Description

The CLE-LINE C97317 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel (HSS) with a TiN (titanium nitride) tip coating, this bit delivers improved wear resistance and longer cutting life compared to uncoated HSS. The 118-degree split point reduces walking on entry and allows drilling to begin without a center punch in many applications. At 4.5 inches overall length with a 3.19-inch flute, it fits standard drill chucks and magnetic drill press setups used daily by trade professionals and maintenance technicians.

This bit is suited for light-to-medium production drilling in shop and field environments. The 5/16-inch diameter and straight cylindrical shank make it compatible with keyed, keyless, and quick-change chuck systems. The regular spiral flute and tapered web configuration promote efficient chip evacuation during through-hole and blind-hole operations. It is a practical stock item for HVAC, plumbing, and electrical trades where drilling sheet metal, unistrut, and structural steel is routine work.

Key Features

• TiN tip coating extends cutting life at the point without adding cost of a fully coated bit
• 118-degree split point reduces thrust and minimizes bit walking on entry
• High speed steel construction handles steel, aluminum, cast iron, and most non-ferrous metals
• Right-hand cut, regular spiral flute for consistent chip clearance
• Straight cylindrical shank fits standard 3-jaw chucks without adapters
• Meets ASME B94.11M standard for jobber-length drill geometry

Compatibility

Designed as a general-purpose jobber-length drill bit suitable for use in standard hand drills, drill presses, and magnetic drills with a chuck capacity of 5/16 inch or greater.

Installation Notes

Secure the workpiece before drilling to prevent rotation or shifting. Disconnect power to any drill press before changing bits. Apply cutting fluid or coolant when drilling ferrous metals to extend bit life, noting this bit does not support coolant-through delivery. Replace the bit if the tip coating is worn through or if the cutting edges show visible chipping, as a dull bit increases heat and reduces hole quality.