Sunex SX5206 Tools 1/4 In. 0.5 Hp Angled Die Grinder. The SUNEX Tools SX5208 0.5HP 90-Degree Angle Die Grinder is engineered for performance, precision, and accessibility in tight workspaces. Featuring a powerful 0.5HP motor, this high-speed grinder is built for demanding tasks like weld breaking, porting, polishing, and deburring.