Value Collection 1057884 Taper Shank Drill Bit 1-1/4 in 4MT

Product Description

The VALUE COLLECTION 1057884 is a cobalt taper shank drill bit designed for heavy-duty drilling in tough materials including hardened steels, stainless steel, and high-strength alloys. Built to a 1-1/4 inch diameter with a No. 4 Morse taper (4MT) shank, this bit seats directly into compatible taper-shank spindles on drill presses and milling machines without a chuck. The 118-degree standard point angle and right-hand spiral flute geometry provide reliable chip evacuation and cutting efficiency across general-purpose metalworking applications. The bright/uncoated finish is standard for cobalt-grade tooling where heat resistance is the primary performance factor.

This drill bit is suited for machine shop, fabrication, and heavy manufacturing environments where large-diameter holes are required in ferrous and non-ferrous metals. The 4MT shank is a common designation for larger-capacity drill presses and boring machines. Its general-purpose performance rating makes it appropriate for production drilling as well as maintenance and repair operations. Installation is performed by machinists and toolroom technicians working with equipment that accepts Morse taper tooling.

Key Features

• 1-1/4 inch (1.2500 inch decimal) diameter for large-bore drilling applications
• Cobalt construction for improved heat and wear resistance versus standard high-speed steel
• No. 4 Morse Taper (4MT) shank for direct spindle mounting without a separate chuck
• 118-degree standard point angle with N-thinned web for reduced thrust and cleaner entry
• Right-hand regular spiral flute with 8-1/4 inch flute length for efficient chip removal
• Coolant-through design supports through-spindle coolant delivery for extended tool life
• Bright/uncoated finish standard for cobalt tooling requiring no additional coating

Compatibility

Designed for use in drill presses, milling machines, and boring equipment fitted with a No. 4 Morse Taper spindle or taper-shank tool holder accepting 4MT tooling.

Installation Notes

Morse taper shanks are installed by aligning the tang and seating the taper firmly into the spindle socket by hand or with a soft mallet — never force with excessive impact. Ensure the spindle and taper bore are clean and free of chips or oil before seating. Use a drift key in the spindle slot to remove the bit; never strike the bit directly. Machine should be powered off and locked out before any tool change.