Precision Twist Drill 6000921 Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000921 is a taper length drill bit designed for general-purpose drilling across a wide range of materials in industrial and trade environments. Built from high speed steel (HSS) with a bright, uncoated finish, this bit measures 0.4724 inches in diameter and features a standard 118-degree point angle with web thinning for improved penetration and reduced thrust. The spiral flute design and right-hand cutting direction are matched to conventional drill press and handheld drilling operations. At 8.0625 inches overall length with a 5.28-inch flute, it delivers the reach needed for deeper-hole applications where a jobber-length bit falls short.

This Series 5ATL taper length drill bit suits fabrication shops, maintenance technicians, and machinists who regularly drill into alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, nickel alloys, magnesium, malleable iron, hardened steel, high strength bronze, cermet, graphite, and reinforced plastic materials. The straight shank with a 0.4724-inch diameter is compatible with standard drill chucks without requiring a reducing sleeve, making it straightforward to deploy in production or field service settings.

Key Features

• High speed steel construction for durability across ferrous and non-ferrous materials
• 118-degree standard point angle with web-thinned, tapered web configuration for reduced entry force
• Taper length body (8.0625 inches overall) provides additional reach compared to standard jobber bits
• Spiral flute with 6xD flute-to-diameter ratio promotes chip evacuation in deeper holes
• Bright, uncoated finish suitable for general-purpose use without coating-related compatibility concerns
• Meets DIN 340 specification for consistent dimensional standards
• Right-hand cut, straight shank — no coolant-through requirement simplifies setup

Compatibility

Designed as an OEM-style general-purpose taper length drill bit compatible with standard drill chucks accepting a 0.4724-inch straight shank. Suitable for use in drill presses, CNC drilling machines, and handheld power drills across the material applications listed in the Series 5ATL product family.

Installation Notes

Install and remove this bit with the drilling machine fully powered off and the chuck key or tool secured before startup. Ensure the chuck jaws are tightened evenly on the straight shank to prevent runout and premature wear. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed settings appropriate to the workpiece material and bit diameter. Inspect the cutting edges for wear or chipping before each use, especially after drilling hardened or abrasive materials.