Precision Twist Drill 5998672 1/8 Inch Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 5998672 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It measures 1/8 inch (0.1250 inches) in diameter with a 118-degree standard point angle and is manufactured from high speed steel with a steam oxide finish. The steam oxide coating reduces friction and helps resist corrosion during service. At 2.75 inches overall length with a 1.625-inch flute length, this bit fits standard drill chucks and is sized for common pilot holes, clearance holes, and through-hole applications. It is used by HVAC technicians, plumbers, electricians, and sheet metal workers across residential and light commercial jobsites.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The right-hand spiral flute with a regular helix evacuates chips efficiently during through-hole drilling. The straight cylindrical shank accepts standard three-jaw drill chucks. Typical applications include pilot holes for fasteners, conduit mounting, bracket fabrication, and sheet metal work encountered in HVAC, plumbing, and electrical installations. The 13xD flute-to-diameter ratio provides good chip clearance at this size.

Key Features

• 1/8 inch (0.1250 inches) diameter with matching straight cylindrical shank for standard chuck compatibility
• 118-degree standard point angle with web-thinned, tapered web for easier entry and reduced thrust
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, and superalloys
• Steam oxide finish reduces friction and provides light corrosion resistance
• Right-hand cut, 2-flute regular spiral for efficient chip evacuation
• ANSI-standard jobber length — 2.75 inches OAL, 1.625-inch flute length

Compatibility

Designed for use with standard three-jaw drill chucks accepting 1/8 inch straight cylindrical shanks. Rated for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Part of the PRECISION TWIST DRILL Series R10.

Installation Notes

Install in a compatible drill chuck and tighten securely before use. Always wear appropriate eye protection when drilling metal. Match drill speed (RPM) to material hardness and bit diameter — smaller diameter bits in hard materials require higher RPM and lighter feed pressure to prevent breakage. Secure the workpiece before drilling and ensure the bit is not damaged or dull before each use.