Accusizetools - BXA Boring Turning and Facing Holder Quick Change Tool Holder, 0250-0202 For Lathe Swing 10-15'' Quick Change Tool Post (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''