How to Replace a Retractable Blade
Retractable utility blades are ubiquitous with contractors and construction companies but are also found in the toolbox of many home owners. A retractable blade utility knife is a great tool for cutting open boxes, scoring drywall, slicing and stripping wire, or almost any other job where a razor-sharp blade is needed. The fact that the knife's blade is retractable is a nice safety feature since it protects you from accidentally cutting yourself when you're not using the knife. Each utility knife opens differently and many modern models don't need tools to change the blade.