Feuling, lifter block bore measuring kit

Used to check the correct bore diameter and roundness of the lifter blocks. Includes 5 precision ground round steel balls. Feuling advises a tolerance of 0.001" to 0.0015". Sizes include: 0.8430", 0.8435", 0.8440", 0.8445" and 0.8450". Fits: > 84-20 B.T.; 86-20 XL; 08-12(NU)XR1200; 00-10(NU)Buell XB Fits: >