You may find this useful: https://www.wood-database.com/jatoba/
Also per https://www.wood-database.com/wood-finder/?fwp_janka=2550.00%2C2750.00 it’s similar in hardness to Live Oak, Olive, and Rosewood - here’s a post on Rosewood (they were successful…eventually!): Advice for cutting through .44” rosewood with a GF Basic