For standard colored pencils up to 8.2 mm in diameter, this sharpener provides a 30-degree sharpening angle, delivering a precise and consistent point for clean lines. For pencils or wax crayons up to 11 mm in diameter, the same 30-degree sharpening angle ensures a uniform point on thicker drawing tools. Metal construction offers durability and reliable performance with everyday use. The cap includes a safety lock to prevent accidental opening and to keep shavings contained. Use scenarios: - In a classroom or studio, sharpen standard colored pencils quickly to a clean, consistent point for neat coloring or drawing. - When working with thicker pencils or wax crayons (up to 11 mm), maintain a sharp point for broader strokes and smooth shading. - While on the go, rely on the lockable cap to prevent spills and keep the sharpener compact and portable.