26 Section 1 Fundamentals Copyright Goodheart-Willcox Co., Inc. 2.2.3 Proper Tool Use Tool safety involves both proper tool use and using the right tool for the job. This is particularly important for electrical work, which often calls for insulated tools to pro- tect against shock hazards. The specific types of tools electricians are most likely to use are covered in Chapter 3, Hand and Power Tools. Always follow general guidelines for safe tool use and refer to manufacturer’s instruc- tions for complete, safe operating procedures. See Figure 2-9. Werner Co. Figure 2-8. Always lock the wheels on a scaffold before climbing. Locking wheels Isantilli/Shutterstock.com Figure 2-9. When using power tools, be sure to wear appropriate protective gear, such as gloves, safety glasses, and hearing protection. Werner Co. Figure 2-7. Always face the ladder and never stand on the top rung. SAFETY NOTE Grounding a Scaff old Metal scaff olds must be grounded by connect- ing a 2 AWG copper conductor between the scaff old and a ground-connecting fi xture (such as a ground plate or a ground rod).