Shell-Mill Adaptors 0 By Admin on December 7, 2014 Uncategorized Run out on Pilot Diametre w.r.t. Taper are controlled within Accuracy 0.008 mm or 0.00003”. Range of Pilot Diametre 16-50 mm in metric & 1/2” – 2’” in Inch version. BPTL Shell-Mill Adaptors Share. Twitter Facebook Pinterest LinkedIn Tumblr Email