What should be done to tools before use?

• A. Sharpen blades
• B. Lubricate tools
• C. Calibrate gauge
• D. Wipe with solvent

Answer: (B)

Before using tools, making sure moving parts are lubricated is a practical and universal step. A light lubricant reduces friction between metal surfaces, which lowers wear, heat, and the chance of parts seizing. It also helps protect against rust and corrosion by leaving a protective film that can repel moisture and contaminants, keeping joints and slides operating smoothly.

Sharpening blades is specific to cutting tools, not every tool; calibrating a gauge is important for measuring devices to ensure accuracy, but not a general pre-use requirement for all tools. Wiping with solvent cleans surfaces, but it isn’t always appropriate and can remove protective coatings or leave residues. Lubrication covers the common needs of many tools with moving parts, making it the best universal pre-use step.