Clipper Recommendations

Well, I tried to shave Nilla, but my clippers are broken. They would only run if I held my finger on the speed adjuster. And even while running, they would not actually remove any hair. They were refurbished clippers that I bought over 2 years ago so I suppose it's time to move on.

I don't want to spend a fortune, but I do want to get good clippers. Ones that clip quickly and can handle very coarse hair. Nilla's coat is not sleek and soft like a horses. Probably whatever would get through a draft horse's hair would work. I'd love it if the replacement blades don't cost a fortune.

What are your recommendations?