Benjamin's Best High Speed Steel Tenon tool. 

This tool features a slender 1/16" width, providing a precise, sharp, and neat 90-degree angle cut perfect for intricate work. It is particularly suited for delicate turnings, making it indispensable for pen makers, especially for crafting tenons on pen center bands. The blade measures 1-1/4" wide by 5" long, with an overall length of 9".