140˚ D d ADO Advanced Performance Coolant-Through Carbide Drill List 6520 (Continued) SPEEDNEWFEEDP294 CARBIDE EgiAs 30˚ ADO-8D, Coolant-Through Cutting Diameter Tolerance (h8) Size mm inch 2≤D≤3 +0 / -0.014 +0 / -0.0006 3