Precision Twist Drill 5997656 Jobber Drill Bit 52 Wire

Product Description

The PRECISION TWIST DRILL 5997656 is a jobber length drill bit designed for general-purpose drilling in metal and hard materials. It is ground from high speed steel and finished with a steam oxide coating that reduces friction and helps resist corrosion during service. The bit is sized at wire gauge 52, which equals 0.0635 inches in decimal, and features a 135-degree split-point tip for fast engagement and reduced walking on contact. With an overall length of 1.875 inches and a two-flute spiral configuration, this bit is a standard choice for machinists, maintenance technicians, and fabricators working in production or field environments.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits hand drills, drill presses, and CNC tooling that accept a straight cylindrical shank of 0.0635 inches. The 7/8-inch flute length supports a maximum drilling depth of 0.875 inches, making it appropriate for through-hole and blind-hole work in thin to medium stock. The regular spiral and tapered web configuration promote chip clearance and reduce heat buildup during cuts.

Key Features

• Wire gauge size 52 (0.0635 inches) straight cylindrical shank for standard chuck compatibility
• 135-degree standard point angle with web-thinned tip reduces thrust and improves centering
• Steam oxide coating lowers friction and provides light corrosion resistance
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Two-flute regular spiral design promotes chip evacuation in through-hole and blind-hole applications
• Conforms to ANSI standards and NAS 907 specification

Compatibility

Designed as a general-purpose OEM-style jobber length drill bit compatible with any drill press, hand drill, or CNC spindle accepting a 0.0635-inch straight cylindrical shank. Series R10B, R15B, and R18B.

Installation Notes

Installation is performed by machinists and maintenance technicians using standard three-jaw or collet chucks. Secure the shank fully in the chuck before operation and verify runout is within acceptable tolerance for the application. Use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to manage heat. Follow applicable shop safety procedures and machine guarding requirements during setup and use.