Precision Twist Drill 5999412 11/32 in Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5999412 is a screw machine length drill bit designed for high-performance drilling in demanding trade and industrial applications. Built from high speed steel with a coated finish, this bit features a 135-degree split point and web-thinned, tapered web construction that reduces walking and lowers thrust force at entry. At 11/32 inch (0.3438 inches) in diameter with a 3-inch overall length and a 1-11/16-inch flute length, it fits standard straight-cylindrical shank chucks. The right-hand spiral flute design promotes efficient chip evacuation. Rated to a 2.5xD flute-by-diameter ratio, this is a heavy duty bit built to ANSI and NAS 907 specifications.

This bit is suited for screw machine, production drilling, and bench drill press work where short, rigid tooling is required to minimize deflection. The split point geometry makes it particularly effective when drilling titanium and other tough metals where point stability and reduced heat buildup matter. Licensed machinists, tool and die technicians, and industrial maintenance professionals commonly reach for screw machine length bits when clearance is tight or workpiece positioning demands a shorter tool. The R40C series designation identifies it within PRECISION TWIST DRILL's high-performance line for heavy-duty cutting operations.

Key Features

• 135-degree split point reduces walking and lowers required thrust force
• Web-thinned, tapered web construction improves cutting efficiency on hard materials including titanium
• High speed steel construction with coated finish for extended service life
• Screw machine length (3 inches overall) provides rigidity and minimizes deflection
• Right-hand spiral flute promotes positive chip evacuation
• Meets ANSI and NAS 907 standards for dimensional and performance consistency

Compatibility

Designed as a direct-fit screw machine length drill bit for standard straight-cylindrical shank chucks; suitable for production drilling and machining setups requiring 11/32-inch diameter tooling in the 0.3000 to 0.3500 inch size range.

Installation Notes

This bit is installed and serviced by machinists, tool and die technicians, and industrial maintenance professionals. Ensure the drill press or machine spindle is fully powered down and locked out before changing tooling. Secure the straight-cylindrical shank firmly in the chuck and verify runout before drilling. When working with titanium or hardened alloys, use appropriate cutting fluid and feed rates consistent with the workpiece material and machine specifications.