Item 5000-0026, Broach Size: 3/8"-D Tolerances Dec.Equiv.: 0.3755-0.3765 Dimensions: 9/16"x13-7/8" Shims Required: 2 Length of Cut: 1-6" Premium High-Speed Steel: Crafted from high-quality H.S.S. for durability, featuring a bright finish to reduce wear and enhance longevity. Precision Cutting: Designed with straight teeth on one edge for precise keyway cutting in inch sizes. Optimized for Rigidity: Proportionally sized to offer a broad cutting range and substantial rigidity, ideal for clean, precise keyways. 3/8"-D Broach Size: Perfect for creating 3/8"-D keyways, with precise tolerances between 0.3755-0.3765 for accurate fits. Versatile Cutting Depths: Comes with 2 shims for adjustable cutting depths, accommodating lengths of cut from 1-6 inches for broad application use., Manufacturer: Accusize Co., Ltd.