For Lathe Swing 10-15'' Quick Change Tool Post (USA STYLE). Made of steel. Style 2: Boring Turing & Facing Lathe Swing: 10 - 15'', BXA A: 1-1/8'', B: 5/8'', C: 1/2'', D: 1-3/4'', Shank: 1/2'' BXA Quick Change Compatibility: Custom-fit for BXA model tool posts, ensuring seamless integration and superior performance for professional-grade machining. Versatile Clamping System: Utilizes a V-groove to securely hold both round shank boring bars and square tool bits, supporting up to 5/8" turning tools for diverse applications. Robust Steel Construction: Crafted from durable steel, these holders are built to endure the demands of continuous, heavy-duty use in various machining environments. Flexible Tool Accommodation: Compatible with tool bit sizes ranging from 1/4" to 5/8" and a shank size of 1/2", offering extensive versatility in turning and facing operations. Comprehensive Set Specifications: Includes six holders with dimensions A: 1-1/8", C: 1/2", D: 1-3/4", L1: 1.761", L2: 1.265", H: 0.409", maximizing tool setup options. BXA Boring Turning And Facing Holder Quick Change Tool Holder, 0250-0202 For Lathe Swing 10-15'' Quick Change Tool Post Sets (USA STYLE) Style 2: Boring Turing & Facing Lathe Swing: 10 - 15'', BXA A: 1-1/8'' B: 5/8'' C: 1/2'' D: 1-3/4'' Shank: 1/2''