What tool is commonly used to remove glazing sealants?

The glazing knife is specifically designed for removing glazing sealants. Its blade is typically wider and sturdier than that of a utility knife, allowing for better leverage and control when scraping off old sealant material. The shape and design of the glazing knife facilitate precision in removing sealants without damaging the surrounding surfaces, which is crucial for ensuring a clean and effective application of new sealant.

While a utility knife can be used for various cutting tasks, including scraping, it may not provide the same level of efficiency or safety for this particular application. A sealant applicator is used for applying sealant rather than removing it, and a screwdriver does not have the appropriate blade or design for handling sealants at all. Thus, the glazing knife is the best-suited tool for this specific task in glazing work.