Allied Machine 1021T-0104 Spade Drill Insert 1-1/8 in Hss Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 1021T-0104 is a spade drill insert designed for high-production drilling applications in metalworking and machining environments. It measures 1-1/8 inches in diameter and features a 130-degree point angle, making it well-suited for general-purpose through-hole and blind-hole drilling. Constructed from High Speed Steel (HSS) with a Physical Vapor Deposition (PVD) Titanium Nitride (TiN) coating, the insert delivers improved wear resistance and longer tool life compared to uncoated HSS tooling. Seat Size A matches the corresponding Allied spade drill body. This insert is installed by machinists and tool-and-die professionals in shop and production environments.

This spade drill insert is used in drilling operations on steel, cast iron, and non-ferrous metals, covering ISO material groups P, K, and N. Typical applications include production drilling on CNC machining centers, drill presses, and turret lathes where replaceable insert tooling is preferred over solid drills. The 7/8-inch height and 0.1875-inch thickness correspond to Seat Size A bodies, allowing quick changeover without re-indicating the tool holder.

Key Features

• 1-1/8 inch diameter with a 130-degree point angle for general-purpose drilling geometry
• High Speed Steel construction provides toughness across a range of workpiece materials
• TiN PVD coating reduces friction and extends insert life on steel and cast iron
• Seat Size A interface for direct compatibility with corresponding Allied spade drill bodies
• Rated for steel (P), cast iron (K), and non-ferrous metal (N) workpiece materials
• Sold individually, allowing single-insert replacement without purchasing a full set

Compatibility

Designed for use with Allied Machine and Engineering Seat Size A spade drill bodies. Compatible with workpiece materials classified as Steel (P), Cast Iron (K), and Non-Ferrous Metal (N).

Installation Notes

Installation is performed by a qualified machinist. Ensure the drill body and machine spindle are fully powered down and locked out before inserting or removing the insert. Seat the insert fully and torque the clamping screw to the drill body manufacturer's specified value using a calibrated torque wrench. Inspect the insert seat and clamping surfaces for chips or debris before seating a new insert to prevent improper seating or insert fracture during operation.