MICRO 100 QBB-140600X QC Boring Bar, Bore Dia. .140 , D .600. More details: Quick Change Boring Bar, C2 Micrograin Carbide, Overall Length 2.000 In, Bore Dia. .140 In, Bore Depth .600 In, Shank Dia. .1875 In, Angle .035 In, Radius .003 In, AlTiN Coated Finish, Right Hand Cutting Direction, Application For Boring