Precision Twist Drill 6000165 Extra Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000165 is a 1/2-inch diameter extra length drill bit engineered for deep-hole drilling applications where standard-length bits fall short. Built from high-speed steel with a bright uncoated finish, it features a 118-degree standard point angle and a 12-inch overall length with a 9-inch spiral flute. The web-thinned, tapered web design reduces cutting resistance at the tip, making it suitable for production and maintenance drilling in metal fabrication, mechanical contracting, and industrial service environments. Right-hand cutting direction with a regular spiral and two flutes provides efficient chip evacuation in deep bores.

This bit is rated for use in a broad range of primary workpiece materials including aluminum, magnesium, copper, nickel, synthetic materials, and titanium. It also performs in secondary materials such as stainless steel, malleable iron, high-strength bronze, nickel alloys, reinforced plastics, and hardened steel. The straight-cylindrical shank with a 1/2-inch diameter and 3-inch shank length seats securely in standard drill chucks and collet holders. It is a general-purpose Series 1290 bit suited for HVAC, plumbing, and electrical rough-in work requiring extended reach through framing, panels, or structural assemblies.

Key Features

• 12-inch overall length and 9-inch flute length for deep-hole drilling beyond standard bit reach
• High-speed steel construction with bright uncoated finish for general-purpose cutting performance
• 118-degree standard point angle with web-thinned, tapered web to reduce entry force
• Two-flute regular spiral design promotes efficient chip clearance in deep bores
• Right-hand cutting, straight-cylindrical 1/2-inch shank fits standard drill chucks and collet holders
• ANSI-standard compliant, Series 1290 general-purpose grade

Compatibility

Designed as an OEM-style general-purpose extra length drill bit compatible with any drill press, hand drill, or magnetic drill accepting a 1/2-inch straight-cylindrical shank.

Installation Notes

Secure the shank fully in the chuck before operation and verify chuck capacity matches the 1/2-inch shank diameter. Apply cutting fluid or lubricant when drilling stainless steel, nickel alloys, or hardened steel to extend tool life and prevent work hardening. Reduce feed pressure on breakthrough to avoid bit deflection or workpiece damage. Always wear appropriate PPE and follow shop safety protocols when operating rotary cutting tools.