140˚ ØD Ød WHO-Ni Ultra Premium Performance Drills for Nickel Alloys List 5955Ni SPEEDFEEDP303CARBIDE WXS 12-20˚ WHO55-5D, Coolant-Through Cutting Diameter Tolerance (h8) Size mm inch D=3 +0 / -0.014 +0 / -0.0006 3