Value Collection 01664788 Taper Shank Drill Bit 4MT Hss

Product Description

The VALUE COLLECTION 01664788 is a taper shank drill bit designed for heavy-duty drilling in metal, structural steel, and hard materials. It measures 1-3/8 inches (1.3750 inches decimal) in diameter and features a 4MT (Morse Taper 4) shank for secure seating in compatible drill press spindles and lathes. The bit is manufactured from high-speed steel with an oxide finish that provides corrosion resistance and reduces friction during cutting. The 118-degree standard point angle suits general-purpose work across a wide range of ferrous and non-ferrous materials. Machinists, tool-and-die workers, and industrial maintenance technicians are the primary users.

This drill bit fits large-capacity drill presses, radial arm drills, and manual lathes equipped with a 4MT spindle. With a 12-inch flute length and 18-inch overall length, it handles deep-hole drilling applications where standard-length bits cannot reach. The right-hand spiral flute and web-thinned point reduce thrust requirements and help clear chips efficiently on through-holes and blind holes in production or maintenance environments.

Key Features

• 1-3/8 inch diameter with 4MT taper shank for positive drive and easy removal with a drift key
• High-speed steel construction rated for general-purpose cutting in ferrous and non-ferrous metals
• Oxide finish reduces surface friction and provides mild corrosion protection during storage and use
• 118-degree standard point angle for versatile, general-purpose drilling
• Web-thinned point reduces cutting thrust and improves hole entry
• 12-inch flute length and 18-inch overall length accommodate deep drilling applications

Compatibility

Designed for use in drill press spindles, radial arm drills, and lathe tailstocks with a No. 4 Morse Taper (4MT) socket. Verify spindle taper designation before installation.

Installation Notes

Installation is performed by machinists or industrial maintenance technicians familiar with taper shank tooling. Power down and lock out the machine before seating or removing the bit. Clean both the taper shank and spindle socket thoroughly to remove chips, oil, and debris before insertion, as contamination prevents full taper engagement and can cause the bit to slip under load. Use a proper drift key and drift slot to remove the bit safely — do not strike the spindle housing.