Klein Tools' Insulated Interchangeable blades contain a bright orange coating of insulation that protects from electrical shock, as well as being flame and impact resistant. When the blades are used with the Klein Tools' insulated handle, the complete tool exceeds the ASTM F1505-2021 standards for insulated tools, and are clearly marked with the official 1000V rating symbol. Replacement blades for Klein Tools' Insulated Interchangeable Screwdrivers (Cat. Nos. 32854INSR and 32581INS). For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.