Precision Twist Drill 6000779 Taper Shank Drill Bit 3MT

Product Description

The PRECISION TWIST DRILL 6000779 is a taper shank drill bit designed for heavy-duty drilling in metal, alloy, and hard materials. It carries a 23/32-inch (0.7188 inches) diameter and mounts via a 3MT (Morse Taper No. 3) shank, making it compatible with drill presses, lathes, and milling machines equipped with a matching taper socket. The 135-degree notched split point reduces walking on entry and lowers the thrust force needed to start the cut. The gold oxide finish on the high speed steel body provides mild lubricity and corrosion resistance during cutting operations. Overall length is 10.25 inches with a flute length of 5.625 inches.

This drill bit is suited for production and maintenance machining environments where a rigid taper-shank connection is required. The Series 209CO geometry with a regular spiral and right-hand cutting direction is a standard configuration for general-purpose hole-making in ferrous and non-ferrous metals. It meets ANSI standards and is appropriate for machine shops, industrial maintenance crews, and tool-and-die operations. The web-thinned point further aids chip evacuation and reduces heat buildup during deeper passes.

Key Features

• 135-degree notched split point reduces entry walk and lowers drilling thrust
• 3MT Morse Taper shank provides a rigid, self-holding connection in compatible spindles
• High speed steel construction withstands the heat generated in metal drilling applications
• Gold oxide finish adds mild lubricity and surface protection
• Web-thinned geometry improves chip clearance and reduces heat accumulation
• Right-hand spiral flute with regular helix for consistent chip evacuation

Compatibility

Designed for use in drill presses, lathes, and milling machines fitted with a No. 3 Morse Taper (3MT) spindle or sleeve. Meets ANSI standards for taper shank drill bits.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician. Before mounting, clean the taper shank and receiving socket thoroughly to ensure full seating contact and prevent runout. Use a proper drift key and drift slot to remove the bit from the spindle — never strike the bit directly. Power down and lock out the machine before inserting or removing the bit.