Measures brake drums up to 12" , measuring arms are removeable from included caliper. Comes with 3-3/4" pointed contact tips, 3/4" pointed contact tips, and 3/4" flat contact tips. Electronic caliper features: easy read LCD digital readout, .0005"/.01mm resolution , direct inch/metric conversion, absolute and incremental measurement (can be zeroed throughout range), storage case.We ship APO, International and do combine shipping. Check out my other items! Sign up for my email newsletters by adding my eCRATER Store to your Favorites