EXOCARB ® WH70 High Performance Drills for Hardened Steels (50-70 HRC) List 5171 SPEED FEED P304 CARBIDE WXS 12˚ WH70-DRL, 55-70 HRC Cutting Diameter Tolerance (h8) Size mm inch 2≤D≤3 +0 / -0.014 +0 / -0.0006 3