Briney Tooling Systems V40PTB-200-1000 Cat40 Precision Test Bar, 2" Diameter x 10" Projection
Briney's Precision Test Bars are made from certified 8620 material, Certified with actual dimensions etched on bar, Ships in wooden storage case, Bar concentric to taper within .0002" Tapers are ground ranging from AT2 to AT3 for maximum spindle contact. Regular inspection of machine spindle is recommended to ensure production stability.