Precision Twist Drill 5997445 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5997445 is a taper length drill bit designed for professional metalworking and machining applications. Built from high speed steel with a bright uncoated finish, this 3/16-inch (0.1875 inches) bit features a 135-degree split point and a parabolic flute profile for efficient chip evacuation. The straight shank and 5.75-inch overall length make it compatible with standard drill chucks. The split point is self-centering, reducing the need for a center punch on most materials. This bit is suited for machinists, tool-and-die technicians, and fabricators working in production or maintenance environments.

The 5997445 is engineered for general-purpose heavy-duty drilling across a wide range of materials. The parabolic flute geometry, rated at a 6xD flute-to-diameter ratio, supports deeper hole drilling with reduced chip packing. The right-hand cutting direction and tapered web configuration are optimized for use in drill presses, CNC machining centers, and hand-held drill applications where precision entry and clean hole quality are required. No coolant-through capability is present, so external coolant or cutting fluid application is recommended when drilling harder alloys.

Key Features

• 135-degree split point is self-centering, eliminating the need for center-punching on most workpieces
• Parabolic flute design at a 6xD ratio promotes fast chip removal and reduces heat buildup in deep-hole drilling
• High speed steel construction provides durability across a broad range of ferrous and non-ferrous materials
• Bright uncoated finish allows easy visual inspection of the cutting edge for wear monitoring
• Tapered web with web thinning reduces thrust force and improves drilling efficiency
• Straight shank fits standard drill chucks without adapters

Compatibility

The 5997445 is rated for use with alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, magnesium, magnesium alloy, malleable iron, nickel, stainless steel, steel, tempered steel, titanium, and titanium alloy. Designed as a general-purpose heavy-duty taper length drill bit conforming to ANSI standards.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with rotary cutting tools. Secure the straight shank fully in the drill chuck and verify runout before beginning any operation. Power down and de-energize any machine tool before changing or inspecting the bit. Because this bit does not support coolant-through delivery, apply cutting fluid directly to the work surface when drilling hardened, stainless, or titanium-based alloys to manage heat and extend tool life.