In the past five years my foot grew a half size, and I have always wanted to resurrect my lightly worn older shoes. I started stretching with great anticipation, tempered by the need to stretch each shoe individually. I've been afraid to wet my shoes with alcohol, but I tried a clothes steamer to soften the leather prior to stretching. You can both lengthen the shoe and widen it at the toes with dual action threads. It's made with dense hardwood and heavy steel, so this stretcher should be strong enough for the job.

Unless you're willing to crank the dials hard with a wrench, gaining a half size will be a strain, so don't expect too much. My first triumph was stretching a pair of crocs which had shrunk under the sun's heat in my hatchback, and a pair of heavy leather shoes that was previously unwearable was able to be worn for half the day. Happy stretching.