Allied 153T-0115 Spade Drill Insert 1-15/32 in Cobalt Tin

Product Description

The ALLIED MACHINE AND ENGINEERING 153T-0115 is a cobalt spade drill insert engineered for high-performance hole-making in demanding workpiece materials. Part of the T-A series, this insert measures 1-15/32 inches in diameter with a 132-degree point angle and a 0.25-inch thickness. It carries a TiN (Titanium Nitride) PVD coating applied over the cobalt substrate to extend cutting life and reduce built-up edge. Seat Size 3 designation ensures correct seating in compatible T-A spade drill holders. This insert is suited for production drilling environments where dimensional accuracy and tool longevity are priorities.

The 153T-0115 is intended for use in ferrous and exotic metal drilling applications. Its primary workpiece material classifications cover Steel (P), Stainless Steel (M), Cast Iron (K), and Superalloys and Titanium (S), making it a versatile option across general machining, aerospace, and heavy manufacturing operations. It is installed in T-A series spade drill bodies and is sized for Seat Size 3 holders. Both manual and CNC machining centers are typical installation environments for this insert.

Key Features

• 1-15/32 inch diameter cutting edge for precision hole sizing
• 132-degree point angle suited for a wide range of ferrous and exotic materials
• Cobalt insert material provides heat and wear resistance over high-speed steel
• TiN PVD coating reduces friction and extends insert service life
• Seat Size 3 design for secure, repeatable seating in T-A series holders
• Fractional inch measurement system for straightforward integration with inch-standard tooling setups

Compatibility

Designed for use with T-A series spade drill holders requiring a Seat Size 3 insert. Compatible with primary workpiece materials classified as Steel (P), Stainless Steel (M), Cast Iron (K), and Superalloys and Titanium (S).

Installation Notes

Installation and replacement of spade drill inserts should be performed by a qualified machinist or tooling technician. Ensure the drill body and machine spindle are fully de-energized and locked out before removing or seating the insert. Verify that the holder seat is clean and free of chips or debris before installing the insert, as contamination on the seating surface can affect runout and cutting performance. Follow the tool manufacturer torque guidelines for the insert clamping screw to avoid seat damage.