Allied Machine 180T-.640 Spade Drill Insert 41/64 in Cobalt

Product Description

The ALLIED MACHINE AND ENGINEERING 180T-.640 is a spade drill insert designed for high-performance drilling in demanding metalworking applications. Built from cobalt high-speed steel and finished with a TiN (titanium nitride) PVD coating, this insert delivers improved wear resistance and longer tool life compared to standard HSS inserts. It features a 132-degree point angle suited for work in steel, stainless steel, cast iron, super-alloys, titanium, and hard materials. At 0.1250 inches thick and sized for a Seat Size 0 holder in the T-A series, it fits directly into compatible T-A spade drill bodies without modification.

This insert is intended for use in production machining environments where consistent hole quality and tool longevity are required. The T-A series is a modular spade drilling system widely used in metalworking shops, job shops, and manufacturing operations. It is appropriate for both manual and CNC lathe, mill, and drill press setups targeting a drilled diameter of 41/64 inches in ferrous and hard-material workpieces.

Key Features

• Cobalt substrate provides superior heat and wear resistance over standard M2 HSS inserts
• TiN PVD coating reduces friction and extends cutting edge life
• 132-degree point angle optimized for steel, stainless steel, cast iron, super-alloys, titanium, and hard materials
• Seat Size 0 fits standard T-A series spade drill bodies without additional tooling
• Fractional inch sizing: 41/64 inches diameter for direct dimensional specification
• Modular insert design allows quick changeover without replacing the full drill body

Compatibility

Designed for use with T-A series Seat Size 0 spade drill holders. Verify holder seat size and series designation before installation to confirm correct fit.

Installation Notes

Installation of spade drill inserts should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before seating or removing the insert. Ensure the insert pocket and seating surfaces are clean and free of chips before torquing the retaining screw. Follow the tool holder manufacturer's torque specifications for the retaining fastener to prevent insert movement during cutting.