Precision Twist Drill 5997530 15/64 Inch Hss Jobber Drill

Product Description

The PRECISION TWIST DRILL 5997530 is a 15/64 inch (0.2344 inch) diameter high speed steel jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It features a 118-degree standard point angle with web thinning for easier penetration and reduced thrust. The steam oxide coating provides mild lubricity and corrosion resistance during cutting operations. With a 2-flute regular spiral flute design and a straight cylindrical shank, this bit is compatible with standard drill chucks used by machinists, maintenance technicians, and fabricators working across a wide range of materials.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium in production and maintenance environments. The 11xD flute-to-diameter ratio and 2-5/8 inch flute length provide adequate chip evacuation for moderate-depth holes. It is part of the R10A-R15A-R18A series and meets ANSI and NAS 907 standards, making it appropriate for aerospace and industrial applications where dimensional and tolerance specifications must be documented.

Key Features

• 15/64 inch (0.2344 inch) diameter with matching straight cylindrical shank diameter of 0.2344 inch
• 118-degree standard point with web thinning and tapered web configuration for reduced entry force
• High speed steel construction with steam oxide coating for lubricity and light corrosion resistance
• 2-flute regular spiral design with 2-5/8 inch flute length and 11xD depth-to-diameter ratio
• Right-hand cutting direction; compatible with standard drill chucks and drill presses
• Meets ANSI standards and NAS 907 specification designation

Compatibility

Designed as a general-purpose jobber drill bit for use with standard drill chucks in bench drills, drill presses, and hand-held drilling equipment. Listed for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpiece materials per workpiece material codes P, M, K, N, and S.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with metal drilling practices. Secure the workpiece and ensure the shank is fully seated and properly tightened in the chuck before operation. Always power down and de-energize the drill press or machine tool before changing bits. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain dimensional accuracy.