Precision Twist Drill 5996095 Cobalt Drill Bit 0.089 in

Product Description

The PRECISION TWIST DRILL 5996095 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and difficult-to-machine materials. It measures 0.089 inches in diameter with an overall length of 1.75 inches and a flute length of 0.75 inches. The 135-degree split point reduces thrust and self-centers on contact, minimizing the need for a center punch. The M41 cobalt alloy construction provides heat and wear resistance beyond standard high-speed steel bits. This bit is suited for use by machinists, tool-and-die technicians, and experienced trade professionals working with ferrous metals, stainless steel, and similarly hard workpiece materials.

The 5996095 is built for screw machine length applications where a shorter, more rigid bit is required to reduce deflection and improve hole accuracy. The straight cylindrical shank fits standard drill chucks without modification. The 2.5xD flute-to-diameter ratio and tapered web configuration promote chip evacuation during short, precise drilling operations. This bit is a practical choice for production drilling, maintenance repair, and toolroom work where hole quality and bit longevity in hard materials are the primary concerns.

Key Features

• M41 cobalt alloy construction for high heat resistance and extended tool life in hard materials
• 135-degree split point for self-centering entry and reduced drilling thrust
• Web-thinned, tapered web design promotes chip flow and reduces cutting resistance
• Screw machine length body provides added rigidity and reduces bit deflection
• Right-hand spiral flute with 2.5xD ratio for efficient chip evacuation
• Meets ANSI standards for dimensional accuracy and performance consistency

Compatibility

Designed as an OEM-style screw machine length drill bit compatible with standard drill chucks accepting a straight cylindrical shank, suited for use in drill presses, CNC machining centers, and hand drill applications where a 0.089-inch diameter wire gauge number 43 bit is specified.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with proper cutting speeds and feeds for cobalt tooling in hard materials. Secure the straight cylindrical shank firmly in a properly sized collet or drill chuck before operation. Do not exceed the recommended RPM for the workpiece material and bit diameter, as overheating will reduce cobalt tool life. Coolant through is not supported on this bit; use external cutting fluid when drilling hard or heat-sensitive materials.