Beveled hole
<img src="https://eng-calculations.com/SVG/Hydraulic_engineering/Valves/Beveled hole.svg" alt="Beveled_hole" title="Beveled_hole">
https://eng-calculations.com/SVG/Hydraulic_engineering/Valves/Beveled hole.svg
<img src="https://eng-calculations.com/SVG/Hydraulic_engineering/Valves/Beveled hole.svg" alt="Beveled_hole" title="Beveled_hole">
https://eng-calculations.com/SVG/Hydraulic_engineering/Valves/Beveled hole.svg