Precision Twist Drill 5996397 Jobber Drill Bit 11/64

Product Description

The PRECISION TWIST DRILL 5996397 is a jobber-length drill bit designed for general-purpose drilling in metalworking applications. Manufactured from M2 high speed steel with a purple/bronze coating, it measures 11/64 inches (0.1719 inches) in diameter with a 135-degree split-point tip and web-thinned geometry for faster penetration and reduced walking on entry. The 3.25-inch overall length and 2.125-inch flute length are standard jobber proportions, making it a practical stock item for tool cribs and service vans alike. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole operations. Licensed tradespeople and machinists across maintenance, fabrication, and service environments rely on this format daily.

This drill bit is suited for drilling steel, stainless steel, cast iron, superalloys, and titanium. It is a general-purpose tool appropriate for both production and maintenance drilling on ferrous and hard-alloy workpieces. The straight cylindrical shank seats in standard three-jaw drill chucks on handheld drills, drill presses, and CNC machines with ER or Jacobs-style chuck tooling. The 12xD flute-to-diameter ratio provides adequate depth capacity for most jobber-length applications without step-drilling.

Key Features

• M2 high speed steel construction for durability across ferrous and superalloy workpieces
• 135-degree split-point with web-thinned geometry reduces thrust and minimizes center-punch dependency
• Purple/bronze coating provides lubricity and heat resistance during cutting
• Right-hand cut, 2-flute spiral design for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks without adapters
• Meets ANSI standards; Series HX10-HX15-HX18

Compatibility

Designed as an OEM-style replacement and standard stock drill bit for any application requiring an 11/64-inch jobber-length drill in a straight-cylindrical shank. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium per supplier specification.

Installation Notes

Install in a properly sized drill chuck and tighten securely before use. Disengage power and ensure the spindle has come to a complete stop before changing bits. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to manage heat buildup and extend tool life. This bit does not support coolant-through delivery; external coolant application is required for demanding materials.