Shiny metal tools can become very hot in the sun despite their reflective properties because they still absorb some light, particularly in the infrared spectrum. Metals have a low heat capacity, allowing them to warm up quickly even with minimal heat absorption. The sensation of heat when touching these tools is due to the efficient heat conduction of metals, which transfers heat rapidly into the skin. This phenomenon explains why metal feels colder than wood in cold weather, as metal conducts heat away from the skin more effectively. Understanding these principles clarifies why shiny metal can become uncomfortably hot when exposed to sunlight.