Precision Twist Drill 6000651 Hss Jobber Drill 0.4921 in

Product Description

The PRECISION TWIST DRILL 6000651 is a high speed steel jobber-length drill bit designed for general-purpose drilling in a wide range of metalworking applications. It measures 0.4921 inches in diameter with an overall length of 5.9449 inches and a flute length of 3.9764 inches. The standard 118-degree point angle is the industry baseline for drilling into steel, cast iron, and non-ferrous metals. The bright, uncoated finish is well suited for use with cutting fluids and standard drill press or hand-held drilling operations. Two spiral flutes with a regular helix clear chips efficiently and maintain consistent feed rates across supported workpiece materials.

This drill bit fits residential and commercial metalworking, fabrication, and maintenance applications where a straight-cylindrical shank and right-hand cutting direction are required. Typical uses include through-hole and blind-hole drilling in steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The web-thinned, tapered web construction reduces thrust at the point and improves hole entry performance. At 0.4921 inches, this bit falls within the 0.4000 to 0.5000 inch diameter range and is categorized under DIN 338 specification with ANSI compliance, making it a standard choice across fabrication shops and maintenance trades.

Key Features

• 0.4921 inch diameter with a 118-degree standard point angle for general-purpose metal drilling
• High speed steel construction provides durability across steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Bright, uncoated finish compatible with cutting fluids and standard lubricants
• Right-hand, two-flute spiral design with regular helix for efficient chip evacuation
• Web-thinned tapered web reduces drilling thrust and improves point engagement
• Straight-cylindrical shank fits standard drill chucks without adapters; DIN 338 and ANSI compliant

Compatibility

Designed as a general-purpose replacement or service drill bit compatible with any standard drill chuck accepting a 0.4921 inch straight-cylindrical shank. Suitable for use in drill presses, CNC drilling machines, and hand-held power drills across metalworking and maintenance applications.

Installation Notes

Installation and use of this drill bit is performed by machinists, fabricators, and maintenance technicians. Secure the straight-cylindrical shank firmly in the drill chuck and verify chuck key removal before operation. Always power down and de-energize the machine before changing bits. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality.