When embarking on a plumbing project that involves the use of 1/2″ PEX tubing, a critical consideration arises: what size hole should I drill to accommodate this specific type of tubing effectively? This consideration is not merely a matter of aesthetics or convenience; it directly impacts the integrity and functionality of the water delivery system. Various factors could influence this decision, such as the type of fasteners used, the surrounding materials, and the intended application of the tubing. Are there distinct standards that professionals abide by for such tasks, or does it vary according to individual preferences and project requirements? Additionally, it’s worth pondering if variances exist between drilling for different PEX fittings or connections, potentially complicating the matter further. Given the plethora of drill bit sizes available in the market, how can one determine the ideal size that strikes a balance between adequate fit and optimal performance? Can you elaborate on best practices for ensuring the drill hole will meet performance expectations?