Precision Twist Drill 5998024 Jobber Drill Bit No 50

Product Description

The PRECISION TWIST DRILL 5998024 is a jobber-length twist drill bit in wire gauge size No. 50, equivalent to 0.0700 inches in diameter. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this bit is designed for general-purpose drilling in steel, cast iron, non-ferrous metals, and superalloys including titanium. The standard 118-degree split point with web thinning centers reliably on most materials without a pilot hole. With a 2-inch overall length and 1-inch spiral flute, this bit is a standard production and maintenance shop consumable installed by machinists, tool-and-die tradespeople, and field service technicians.

This bit fits typical jobber-length drill applications in production machining, HVAC fabrication, metal panel work, and general maintenance environments. It is suited for use in handheld drill drivers and bench-top or floor-standing drill presses. The straight-cylindrical shank accepts standard three-jaw chucks without an adapter. The Series R10H-R18H designation covers a range of small-diameter HSS jobber bits built to ANSI standards, making this a direct shop-stock replacement when a No. 50 wire-gauge hole is required.

Key Features

• Wire gauge No. 50 diameter: 0.0700 inches for precise small-diameter hole sizing
• High-speed steel construction rated for steel, cast iron, non-ferrous metals, and titanium alloys
• 118-degree standard point angle with web-thinned, tapered web for improved chip clearing
• Right-hand spiral flute with regular spiral type for consistent chip evacuation
• Straight-cylindrical shank fits standard three-jaw drill chucks without adapters
• Built to ANSI specification in the R10H-R18H series for repeatable dimensional consistency

Compatibility

Designed as a general-purpose jobber-length HSS drill bit for any application requiring a No. 50 wire gauge, 0.0700-inch diameter hole. Compatible with standard three-jaw chucks in handheld drills and stationary drill presses. No coolant-through capability; intended for dry or externally lubricated drilling operations.

Installation Notes

This bit is installed and replaced by machinists, maintenance technicians, and trade professionals using standard three-jaw chucks. Secure the shank fully in the chuck and verify runout before drilling at production feed rates. For small-diameter bits at this size, use appropriate cutting fluid on ferrous materials to extend tool life and reduce the risk of breakage. Avoid excessive feed pressure, which can snap small-diameter HSS bits, particularly in hard alloys or interrupted cuts.