Precision Twist Drill 6001278 Taper Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 6001278 is a taper shank drill bit designed for general-purpose metal drilling applications. It features a 0.2362-inch (6.00 mm) diameter, a 1MT (Morse Taper No. 1) shank for secure machine tool engagement, and a 118-degree standard point angle. The flute length is 2.2441 inches (57.00 mm), and the overall length is 5.4331 inches (138.00 mm). Manufactured from high speed steel (HSS) with an oxide finish, this bit delivers reliable performance in right-hand cutting operations. It is web-thinned to reduce thrust and improve chip evacuation, and conforms to DIN 345 standards.

This drill bit is suited for use in drill presses, lathes, and milling machines equipped with a No. 1 Morse Taper spindle or sleeve. The regular spiral flute design and 118-degree point make it appropriate for drilling mild steel, cast iron, aluminum, and similar general-purpose materials in both production shop and maintenance environments. Licensed machinists and tool-and-die technicians are the primary installers and users of this bit type.

Key Features

• 0.2362-inch (6.00 mm) diameter with 1MT Morse Taper shank for direct spindle mounting
• 118-degree standard point angle with web-thinned tip to reduce entry thrust
• High speed steel construction with oxide finish for corrosion resistance and reduced friction
• Regular right-hand spiral flute for efficient chip removal
• 2.2441-inch flute length provides a 4xD length-to-diameter ratio for deep hole capability
• Conforms to DIN 345 standard for consistent dimensional accuracy

Compatibility

Designed for use in any machine tool spindle or adapter sleeve accepting a No. 1 Morse Taper (1MT) shank, including standard drill presses, lathes, and milling machines configured for 1MT tooling.

Installation Notes

Installation and use of taper shank drill bits should be performed by qualified machinists or trained shop personnel. Ensure the machine spindle and taper shank are clean and free of burrs before seating the bit; a properly seated Morse Taper requires a firm mallet tap to lock. Power down and lock out the machine before inserting or removing the bit. Use a drift key through the spindle slot to remove the bit safely — never strike the bit directly against the machine.