Precision Twist Drill 5999914 Taper Shank Drill Bit 3MT

Product Description

The PRECISION TWIST DRILL 5999914 is a taper shank drill bit engineered for general-purpose drilling in metal fabrication, machining, and industrial maintenance applications. Built from high speed steel with an oxide finish, it carries a 1.1094-inch (1-7/64 inch) cutting diameter and mounts via a No. 3 Morse Taper (3MT) shank for secure seating in compatible drill presses, lathes, and machine spindles. The 118-degree standard point angle and web-thinned geometry reduce entry force and improve chip clearance. At 11.75 inches overall length with a 7.125-inch spiral flute, it handles deeper bore depths without tool changes.

This bit is suited for right-hand drilling operations in ferrous and non-ferrous metals, plastics, and similar materials at production and job-shop environments. The regular spiral flute type promotes consistent chip evacuation during through-hole and blind-hole work. The Series S209 design meets ANSI standards, making it appropriate for shops requiring documented tooling compliance. It is sold individually and is a direct fit wherever a 3MT taper shank socket or adapter is installed.

Key Features

• 1.1094-inch cutting diameter (fractional equivalent: 1-7/64 inch)
• No. 3 Morse Taper shank for positive, self-holding engagement in compatible spindles
• High speed steel construction for durability across general-purpose metal drilling
• Oxide finish provides light corrosion resistance and reduces friction at the cutting edge
• 118-degree standard point angle with web-thinned geometry for reduced thrust and cleaner entry
• Right-hand cut, regular spiral flute at 7.125 inches for efficient chip removal
• ANSI-compliant Series S209 — meets documented tooling standards

Compatibility

Designed for use in drill presses, lathes, milling machines, and other machine tool spindles fitted with a No. 3 Morse Taper (3MT) socket or adapter. Coolant-through spindles are not required; this bit does not support internal coolant delivery.

Installation Notes

Installation is performed by machinists or maintenance technicians familiar with Morse Taper tooling. Clean and inspect both the taper shank and the spindle socket before seating to ensure full metal-to-metal contact and prevent slippage under load. Power down and lock out the machine before inserting or removing the bit. Use a proper drift key and drift slot to eject the shank — do not use impact tools directly on the shank body.