Value Collection 01665785 Taper Shank Drill Bit 1-3/8 in 4MT

Product Description

The VALUE COLLECTION 01665785 is a taper shank drill bit engineered for heavy-duty drilling in metal, structural steel, and other ferrous materials. Built from high-speed steel with an oxide finish, it delivers consistent performance in general-purpose production and maintenance drilling applications. The bit measures 1-3/8 inches (1.3750 inches decimal) in diameter and features a 118-degree standard point angle with web thinning to reduce thrust and improve centering at the start of a cut. The 4MT (Morse Taper 4) shank seats directly into compatible taper-socket spindles on drill presses, lathes, and magnetic drilling machines. Overall weight is 8 pounds.

This drill bit is suited for machine shop, fabrication, and industrial maintenance environments where large-diameter holes must be drilled in a single pass or with minimal step drilling. The spiral flute design with a regular spiral type evacuates chips efficiently during deep-hole drilling. Right-hand cutting direction is standard for conventional spindle rotation. The bit does not support coolant-through delivery, so external flood or mist coolant should be applied at the cutting edge when drilling hard materials or running extended production cycles.

Key Features

• 1-3/8 inch diameter high-speed steel construction for general-purpose production drilling
• 4MT (Morse Taper 4) shank for direct mounting in taper-socket spindles without a chuck
• 118-degree standard point angle with web thinning to reduce entry thrust and improve bit centering
• 17-inch spiral flute length supports deep-hole chip evacuation
• 24-inch overall length accommodates deep workpieces and extended-reach setups
• Oxide finish provides mild lubricity and corrosion resistance during storage and use
• Right-hand cutting, regular spiral, Series 502 designation

Compatibility

Designed for use in any machine spindle, drill press quill, or lathe tailstock that accepts a 4MT (Morse Taper 4) socket. No adapter sleeve or chuck is required for direct-mount applications.

Installation Notes

Installation and operation should be performed by qualified machinists or tooling technicians familiar with taper-shank tooling procedures. Before mounting, clean the taper socket and the drill shank thoroughly to ensure full metal-to-metal contact and prevent fretting. Power down and lock out the machine before seating or removing the bit from the spindle. Apply appropriate external coolant at the cutting edge during operation, as this bit does not support coolant-through delivery.