Precision Twist Drill 6000838 Taper Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 6000838 is a taper shank drill bit engineered for high-performance metal drilling in industrial and trade applications. Sized at 49/64 inch (0.7656 inches) in diameter with a 3MT taper shank, it accepts standard Morse taper spindles found on drill presses, lathes, and milling machines. The bit is manufactured from high speed steel with a gold oxide finish that reduces friction and provides moderate corrosion resistance. A 135-degree notched point with web thinning reduces thrust on entry and helps the bit self-center on curved or hard workpiece surfaces. Machinists and maintenance technicians are the primary installers of this tooling.

This taper shank drill bit is suited for use in machine shop environments, maintenance and repair operations, and production drilling applications where a Morse taper spindle is available. Its regular spiral flute geometry handles a broad range of ferrous and non-ferrous metals. The 6-inch flute length supports a 4xD depth-to-diameter ratio, making it appropriate for deeper hole applications common in fabrication and heavy equipment service. It meets ANSI standards for taper shank drill geometry.

Key Features

• 49/64 inch (0.7656 inches) diameter with right-hand cutting direction
• 3MT taper shank for direct mounting in Morse taper spindles without a chuck
• 135-degree notched point with web thinning for reduced thrust and self-centering entry
• High speed steel construction with gold oxide finish for reduced friction
• 6-inch spiral flute length supports 4xD drilling depth ratio
• Meets ANSI standards; Series 209CO high-performance designation

Compatibility

Designed for use in drill presses, lathes, and milling machines equipped with a No. 3 Morse taper (3MT) spindle socket.

Installation Notes

This tooling is installed and operated by machinists, tool and die technicians, or qualified maintenance personnel. Power down and lock out the machine before inserting or removing the taper shank. Seat the taper shank firmly using a drift key and confirm it is fully engaged before operation. Inspect the taper surfaces on both the bit and the spindle for burrs or debris that could affect concentricity.