I have a Wahl “Shearer Laser” clipper. May not be the name but that is the description on the clipper and I bought them second hand so that is all I know. It is a large clipper like the ones you body clip with. The blade on it is dull and rusted and I think I need new blades. The blade says Stihl A21. I google that and I find no clipper blades. I don’t need really fine cutting blades. My leased “Grandma Horse” is covered in bot eggs !
I am going to shave those things and all the hair they are attached to off. Like pronto! Need better blades to do that with. Don’t know what size blades or where to buy them. TSC doesn’t have any that size as far as I can tell.