KYOCERA Replaceable Drill Tip, Series: DA Series, 18.7 mm Dia, #180 Insert Seat, 140 deg Included Angle, 1 Cutting Edge, For Use With: SS20-DRA180M, SF25-DRA180M Tool Holders and DRA High Efficiency Modular Magic Drill, Right Hand Cutting, Manufacturer's Grade: PR1535, Through Coolant: No, Carbide, MEGACOAT NANO, Applicable Materials: Steel and Stainless Steel