Allied Machine 115T-R1-3 Spade Drilling Insert

The Allied Machine 115T-R1-3 Spade Drilling Insert is an Original T-A spade drill insert with a 2.9844" diameter, designed for use within Allied’s T-A Replaceable Insert Drilling System. As part of the Original T-A family, this insert is compatible with Allied Universal spade drill holders, enabling insert-to-holder interchangeability without swapping the entire drill body. Original T-A inserts are offered in multiple materials and coatings to tailor wear resistance and toughness, including high-speed steel and cobalt grades, with coating options such as TiN, TiAlN, and TiCN. The 115T-R1-3 designation identifies the specific model within the T-A catalog, ensuring a standardized replacement for compatible spade drilling configurations. Typical applications include general-purpose metal drilling where a replaceable-insert spade configuration is preferred, providing a precise, repeatable hole size at the 2.9844" diameter when paired with the appropriate holder.