140˚ D d ADO Advanced Performance Coolant-Through Carbide Drill List 6550 SPEEDNEWFEEDCARBIDEP295-297EgiAs 30˚ ADO-30D, Coolant-Through Cutting Diameter Tolerance (e8) Size mm inch D=3 -0.014 / -0.028 -0.0006 / -0.0011 3