Allied Machine 1023T-0204 Spade Drill Insert 2-1/8 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 1023T-0204 is a spade drill insert designed for high-speed steel cutting applications requiring a 2-1/8 inch diameter bore. Built to Seat Size C, this insert features a 130-degree point angle and a TiN (titanium nitride) PVD coating that extends tool life by reducing friction and heat buildup at the cutting edge. With a thickness of 0.3125 inches and a height of 1-19/64 inches, the 1023T-0204 is dimensioned for secure, repeatable seating in compatible C-series spade drill bodies. Machinists and tooling specialists in production or job-shop environments are the primary installers of this insert.

This insert is suited for drilling operations in steel, cast iron, and non-ferrous metals, covering ISO material codes P, N, and K. It is appropriate for both CNC machining centers and manual drill press setups where large-diameter through-hole or blind-hole drilling is required. The TiN coating makes it a practical choice for moderate-to-high production runs where regrinding cycles need to be extended. It is sold individually and is a direct replacement for worn or damaged inserts in existing C-series spade drill holder assemblies.

Key Features

• 2-1/8 inch cutting diameter for large-bore drilling operations
• 130-degree point angle reduces thrust and improves chip formation
• TiN PVD coating extends cutting edge life and resists heat buildup
• High speed steel construction provides toughness across P, N, and K workpiece materials
• Seat Size C ensures precise fit and repeatability in compatible C-series spade drill bodies
• 0.3125 inch thickness with a height of 1-19/64 inches for consistent insert seating

Compatibility

Designed as an OEM-style replacement insert for C-series spade drill holder bodies. Compatible workpiece materials include steel, cast iron, and non-ferrous metals (ISO material codes P, N, and K).

Installation Notes

Insert replacement should be performed by a qualified machinist with the machine powered down and locked out per applicable safety procedures. Ensure the insert seat is clean and free of chips or debris before seating the new insert to maintain proper alignment and surface contact. Use the correct insert screw torque tool as specified by the drill body manufacturer — do not overtighten by hand. Inspect the holder seat for wear or damage before installing a replacement insert.