Precision Twist Drill 6000188 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 6000188 is a reduced shank drill bit designed for general-purpose drilling in metal and other materials. It features a 47/64 inch (0.7344 inch) diameter cutting edge paired with a 1/2 inch Weldon shank, allowing use in standard 1/2 inch chuck equipment without a full-shank bit. The 118-degree standard point angle is well suited to ferrous metals and common shop materials. The bright, uncoated high speed steel construction keeps the bit ready to use straight from the package. Series R57 geometry balances cutting speed with tool life across a wide range of general machining applications.

This bit is intended for shop, maintenance, and field drilling operations where a reduced shank design is needed to fit standard 1/2 inch chucks while drilling holes larger than 1/2 inch. It handles ferrous metals as the primary workpiece material, and is also rated for aluminum, copper, magnesium, nickel, titanium, synthetic materials, and cermet. The 3-inch flute length supports drilling to a maximum depth of 3 inches, and the 6-inch overall length gives clearance in benchtop drill presses and mill setups. Right-hand spiral flutes evacuate chips during standard clockwise drilling operations.

Key Features

• 47/64 inch cutting diameter (0.7344 inch decimal) with a 1/2 inch Weldon shank for reduced shank fitment
• 118-degree standard point angle for general-purpose entry into ferrous and non-ferrous metals
• High speed steel construction with bright, uncoated finish — no coating prep required
• 3-flat Weldon shank resists bit slip under torque in drill chucks and holders
• Regular spiral, right-hand cut for standard clockwise drilling with efficient chip evacuation
• Rated for ferrous metal, aluminum, copper, magnesium, nickel, titanium, synthetic, and cermet workpieces

Compatibility

Designed as a general-purpose replacement drill bit compatible with 1/2 inch Weldon shank holders and drill chucks in standard benchtop drill presses, machining centers, and portable drilling equipment.

Installation Notes

Installation and use of this bit should follow standard machine shop safety practices. Secure the Weldon shank firmly in a compatible 1/2 inch chuck or holder before operation, ensuring set screws engage the flat properly to prevent rotation. Power down and lock out the drill press or machine before changing bits. Always wear appropriate eye protection and secure the workpiece before drilling.