Kyocera Replaceable Drill Tip DA1980MGM PR1535, manufacturer part number TLC06591.
Specifications: Cutting Diameter: 19.80 mm (0.7795 in); Insert Holding Method: Screw; Old Material Number: 8845919; Number of Cutting Edges: 2; Cutting Diameter Minimum: 19.80 mm (0.7795 in); Cutting Diameter Maximum: 19.80 mm (0.7795 in); Insert Size: 1980; Hand Direction: Right; Insert Style: DA; ANSI Designation: DA1980MGMPR1535; Chip Breaker Type: GM; ISO Designation: DA1980M-GM; Machining Operations: Drilling; Insert Grade: PR1535; Workpiece Material: Steel, Stainless Steel, Cast Iron; Coating Process: PVD.
Material: Carbide. Coating/Finish: MEGACOAT NANO. Series: DRA. Unit of measure: Metric.