All broach sets are furnished in fitted metal boxes, and come complete with precision broaches, slotted bushings, and necessary shims. Including keyway broaches of Style D: 5/16'', 3/8'', 7/16'', and 1/2''. 4 broaches & 8 bushings = 32 combinations. Premium and strong aluminum case. Bushing Dia Bore Size Plain Only: 1-1/2'', 1-5/8'', 1-3/4'', 1-7/8'', 2, 2-1/8'', 2-1/4'', 2-1/2'' Diverse Keyway Sizes: Equipped with broaches for keyway sizes 5/16", 3/8", 7/16", and 1/2", catering to a wide range of machining preferences. Extensive Bushing Selection: Includes 8 bushings with diameters from 1-1/2" to 2-1/2", offering compatibility with various bore sizes for maximum versatility. 32 Combination Possibilities: With 4 broaches and 8 bushings, this set allows for 32 different keyway and bore size combinations, accommodating most common machining needs. High-Quality HSS Material: Crafted from high-speed steel (HSS) for durability and precision cutting, suitable for both ferrous and non-ferrous materials. Elegantly Packaged: Comes in a fitted alminum case for professional storage and organization, enhancing the toolkit's appearance and utility.