Precision Twist Drill 6000289 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000289 is a taper length, high speed steel (HSS) drill bit from the R51 Series, designed for general-purpose drilling across a wide range of metals and engineering materials. It measures 39/64 inch (0.6094 inch) in diameter with an overall length of 8-3/4 inches and a flute length of 4-7/8 inches. The 118-degree standard point angle and web-thinned, tapered web configuration promote accurate starts and efficient chip evacuation. The bright, uncoated finish is suitable for general shop and field use. This bit is installed and used by machinists, pipefitters, ironworkers, and general trade mechanics requiring a longer reach than a jobber-length bit provides.

The 6000289 taper length bit is suited for through-hole drilling in structural steel fabrication, plumbing rough-in, HVAC bracket work, and general metalworking applications. Its longer flute-to-diameter ratio of 6xD makes it appropriate when standard jobber bits lack the reach needed for deeper holes. The straight cylindrical shank accepts standard 3-jaw drill chucks on portable drills, drill presses, and milling machines. It is a general-purpose tool covering a broad range of ferrous and non-ferrous base materials.

Key Features

• 39/64 inch diameter (0.6094 inch decimal) with 118-degree standard point for accurate entry on flat and curved surfaces
• Taper length body at 8-3/4 inches OAL provides extended reach versus jobber-length equivalents
• 4-7/8 inch spiral flute length with 6xD ratio supports chip clearance in deeper cuts
• Web-thinned, tapered web reduces thrust requirements and improves penetration on tough alloys
• Bright, uncoated HSS construction — suitable for dry cutting or use with cutting fluid
• Right-hand cut, straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose taper length drill bit compatible with standard 3-jaw drill chucks accepting straight cylindrical shanks up to 0.6094 inch diameter, for use in drill presses, portable drills, and milling machine setups. Rated for drilling in alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, high-strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic, stainless steel, and cermet materials per manufacturer specifications.

Installation Notes

Install into a properly sized drill chuck and tighten securely before operation. Power down and de-energize all equipment before changing bits. Apply a cutting fluid appropriate for the workpiece material to extend tool life, particularly when drilling stainless steel, hardened steel, or cast iron. Follow applicable ANSI and shop safety standards for drilling operations, including securing the workpiece to prevent rotation.