1. Why Wrench Time Still Matters—But Why It’s So Often Misunderstood Wrench time—the percentage of a technician’s shift spent physically turning wrenches—has been a cornerstone metric in maintenance for decades. On paper, it’s simple: increase wrench time, and you increase productivity. But as the cartoon humorously shows, “giving everyone a wrench” doesn’t automatically make the […] The post How to Improve Wrench Time in Maintenance Without Missing the Real Goal appeared ...