Precision Twist Drill 6001123 Taper Shank Drill Bit 4MT

Product Description

The PRECISION TWIST DRILL 6001123 is a taper shank drill bit designed for heavy-duty drilling operations in metal fabrication, machining, and industrial maintenance environments. Built from high speed steel with an oxide finish, it carries a 1.2598-inch (32.00 mm) cutting diameter and mounts via a 4 Morse Taper shank for rigid, positive engagement in compatible drill presses and milling machines. The 118-degree standard point angle with web thinning reduces thrust at entry and improves centering on flat stock. At 13.125 inches overall length with a 7.2813-inch spiral flute, it handles deep-hole applications where shorter tooling falls short.

This bit is suited for general-purpose drilling in ferrous and non-ferrous metals, including steel plate, cast iron, and structural shapes. It fits stationary drill presses, radial arm drills, and horizontal boring machines equipped with a 4MT spindle. The right-hand spiral flute with regular helix clears chips consistently during through-hole and blind-hole operations. Machinists, tool-and-die makers, and maintenance technicians working in job shops or plant maintenance settings will find this bit a standard production choice for larger-diameter holes.

Key Features

• 1.2598-inch (32.00 mm) cutting diameter for large-bore applications
• 4 Morse Taper shank provides secure, self-holding fit in matching spindles
• High speed steel construction handles general-purpose metal drilling
• Oxide finish improves lubricity and surface protection during cutting
• Web-thinned 118-degree standard point reduces entry thrust and improves accuracy
• Manufactured to DIN 345 standards for consistent dimensional accuracy

Compatibility

Designed for use in drill press spindles, radial arm drills, and boring machines fitted with a 4 Morse Taper (4MT) socket. Conforms to DIN 345 dimensional standards.

Installation Notes

Installation and removal of taper shank tooling should be performed by a qualified machinist with the machine at a full stop and the power locked out. Use a proper drift key and drift slot to seat and remove the taper; never strike the shank directly with a hammer. Ensure the taper socket is clean and free of chips or burrs before seating to prevent fretting and runout. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve hole finish.