Precision Twist Drill 5999319 Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5999319 is a screw machine length drill bit designed for high-performance drilling in metalworking and mechanical applications. It measures 0.199 inches in diameter with an overall length of 2.25 inches and a flute length of 1.1875 inches. Manufactured from high speed steel with a bright, uncoated finish, this bit delivers reliable cutting performance in general-purpose and high-performance shop environments. The 118-degree point angle and web-thinned, tapered web configuration reduce thrust and improve chip evacuation. It is sold individually and packaged as a single unit.

This drill bit is suited for screw machine operations and precision drilling tasks where stub-length rigidity is required. The 2.5xD flute-to-diameter ratio provides added stability in short-reach setups. The Series R41 designation places it within a recognized line of general-purpose HSS bits conforming to ANSI standards. It is rated for use on titanium as its primary workpiece material, making it a capable choice for harder metal stock encountered in machining, fabrication, and mechanical trade applications. A licensed machinist or tool-and-die professional would be the typical installer or operator.

Key Features

• 0.199-inch diameter, screw machine (stub) length for increased rigidity
• High speed steel construction with bright, uncoated finish
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Right-hand cut with regular spiral, straight-cylindrical shank
• Rated for titanium as primary workpiece material
• Conforms to ANSI standards, Series R41

Compatibility

Designed as an OEM-style screw machine length replacement bit for standard straight-shank drill chucks accepting a 0.199-inch diameter bit conforming to ANSI specifications.

Installation Notes

Installation and operation should be performed by a qualified machinist or trade professional familiar with drill press, lathe, or screw machine tooling. Secure the bit firmly in the chuck and verify runout before drilling. Always power down and de-energize the machine before changing tooling. Follow applicable shop safety standards and manufacturer speed-and-feed recommendations for the workpiece material.