ADO Advanced Performance Coolant-Through Carbide Drill List 6520 (Continued) NEW SPEED FEED P294 CARBIDE EgiAs 30˚ ADO-8D, Coolant-Through Cutting Diameter Tolerance (h8) Size mm inch 140˚ 2≤D≤3 +0 / -0.014 +0 / -0.0006 3