Precision Twist Drill 6000123 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 6000123 is a reduced shank twist drill bit designed for general-purpose hole-making in ferrous metals and a wide range of secondary materials. Built from high speed steel with a bright uncoated finish, this bit delivers reliable performance across a broad spectrum of drilling applications. It features a 39/64-inch (0.6094 inch decimal) drill diameter paired with a 1/2-inch Weldon shank, allowing it to seat securely in standard chucks equipped for flat-drive engagement. The 118-degree standard point angle is the most common geometry for general metalworking, requiring no special setup or pilot hole on most ferrous stock.

This bit is suited for use in machine shops, fabrication environments, and maintenance applications where a reduced shank is needed to fit a 1/2-inch chuck while drilling a larger-diameter hole. The Series R57 designation places it in a well-established line of general-purpose HSS drill bits. Compatible workpiece materials include ferrous metal as the primary target, with secondary capability on aluminum, copper, magnesium, nickel, titanium, and synthetic materials. No coolant-through capability is present, so standard flood or manual lubrication applies when drilling harder stock.

Key Features

• 39/64-inch drill diameter (0.6094 inch decimal) with 1/2-inch reduced Weldon shank for standard chuck compatibility
• 118-degree standard point angle — no special grinding or pilot hole required for most ferrous applications
• High speed steel construction for durability across ferrous and non-ferrous materials
• 3-flat Weldon shank prevents bit rotation in the chuck under load
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Bright uncoated finish — suitable for general-purpose use without coating-related heat constraints

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with 1/2-inch capacity chucks and Weldon-style tool holders. Rated for drilling ferrous metal, aluminum, copper, magnesium, nickel, titanium, and synthetic materials per ANSI standards (Series R57).

Installation Notes

Installation is performed by a machinist or qualified technician using a drill press, milling machine, or hand drill with a 1/2-inch Weldon-compatible chuck or holder. Secure all three flats against the set screws in the Weldon holder before operating to prevent slippage under torque. Ensure the workpiece is properly clamped before drilling. Apply appropriate cutting fluid or lubricant when working harder ferrous stock to manage heat buildup and extend bit life.