Value Collection 01394857 Taper Length Drill 0.4134 in Hss

Product Description

The VALUE COLLECTION 01394857 is a taper length twist drill bit designed for general-purpose drilling in metal, wood, and plastics. Built from high-speed steel (HSS) with a black oxide finish, it measures 0.4134 inches (10.50 mm) in diameter and features a 118-degree standard point angle for clean entry in most common materials. The spiral flute geometry is right-hand cut with a regular spiral type, and the web is thinned and tapered to reduce thrust and improve chip evacuation. Licensed trades and experienced machinists reach for this style of drill when a jobber-length bit is too short for the application but a full aircraft-length extension is unnecessary.

This drill bit is suited for use in drill presses, CNC machining centers, and hand-held drill motors across light industrial, maintenance, and fabrication settings. The straight-cylindrical shank seats securely in standard three-jaw chucks without the need for specialized toolholders. At 0.4134 inches diameter, this bit fills a fractional gap between common Letter and Number drill sizes, making it practical for metric-referenced layouts and close-tolerance through-holes in general shop work.

Key Features

• HSS construction provides heat resistance and edge retention for drilling steel, aluminum, and similar materials
• Black oxide finish reduces friction at the cutting edge and offers light corrosion resistance during storage
• 118-degree standard point angle suits a broad range of common shop materials without regrinding
• Web-thinned, tapered web reduces drilling thrust and promotes efficient chip clearance
• Right-hand spiral flute pulls chips out of the hole during normal forward drilling
• Straight-cylindrical shank fits standard three-jaw chucks on bench drills, drill presses, and CNC machines

Compatibility

Designed as a general-purpose replacement or supplemental drill bit for any application requiring a 0.4134-inch (10.50 mm) diameter taper-length HSS drill with a straight-cylindrical shank and 118-degree point.

Installation Notes

Installation of this bit is performed by machinists, tool-and-die technicians, and maintenance mechanics familiar with drilling operations. Secure the shank fully in the chuck and verify concentricity before beginning a cut. Always power down and lock out the machine before changing bits. Follow applicable shop safety standards and wear appropriate eye protection when drilling.