Value Collection 1057826 Taper Shank Drill Bit 4MT Cobalt

Product Description

The VALUE COLLECTION 1057826 is a cobalt taper shank drill bit designed for heavy-duty drilling in ferrous metals, stainless steel, and hard alloys. Built with a 4MT (Morse Taper 4) shank, it seats directly into compatible taper-shank spindles on drill presses, lathes, and floor-standing machines without a separate chuck. The 118-degree standard point angle and right-hand spiral flute geometry make this bit well-suited for general-purpose production drilling. Web thinning on the point reduces thrust force at entry and helps extend tool life when cutting harder materials. The bright, uncoated finish is appropriate for dry cutting or light coolant-assisted operations.

This bit is used in industrial and commercial machine-shop environments where large-diameter holes are required in a single pass. The 4MT shank fits larger-capacity drill presses and vertical mills equipped with a No. 4 Morse Taper spindle. Typical applications include structural fabrication, equipment manufacturing, and maintenance shops that require consistent, repeatable hole geometry at 1-1/8 inch diameter. Coolant-through capability supports chip evacuation and thermal management during extended cuts in tough materials.

Key Features

• Cobalt tool material provides heat resistance and durability in hard or abrasive metals
• 4MT taper shank seats directly into No. 4 Morse Taper spindles without a chuck adapter
• 118-degree standard point angle for general-purpose drilling across a wide range of materials
• N-thinned web reduces entry thrust and improves cutting efficiency
• Coolant-through design supports chip clearance and heat control during extended cuts
• Right-hand spiral flute, regular helix for reliable chip evacuation

Compatibility

Designed as a general-purpose replacement or production drill bit for machines equipped with a No. 4 Morse Taper (4MT) spindle, including large-capacity drill presses, lathes, and vertical milling machines.

Installation Notes

Installation is performed by a machinist or tool-and-die technician. Before seating the bit, power down and lock out the machine per OSHA lockout/tagout procedures. Clean the taper socket and shank of any chips, oil film, or burrs before insertion to ensure full contact and prevent slippage under load. Use a drift punch and hammer to remove the bit from the spindle socket after use rather than pulling by the flutes.