Your tailor probably uses a serger to finish the edge of the pants, then a blind hem machine to hem them. I have tried hemming pants using the blind stitch on a regular sewing machine and wasn't pleased with the hem. Too much of the stitch shows on the outside to please me.

The hem stitch on a regular sewing machine can be tricky to adjust. I've been sewing for years and only recently watched someone adjust the hem foot to get a very small bite in the fabric. She set everything up, figured out where the "zig" in the hem stitch would catch, and THEN adjusted the guide on the foot to make that"zig" bite as small as possible. Don't know why I never thought of doing it that way.

Even so, you won't get the same results as you get with a blind hem machine, which does only hems.

Having said that, I'd gladly pay $10 to have someone else do a hem with a blind hem machine (excellent results), thus saving me the aggravation.

CMC

If you aren't willing to take the time to do them by hand, considering the price of wool slacks, it's worth it to have a professional looking hem. Just my opinion tho'
Suzi

I'd have them done, too. Them hand hemming is simple...it is the fitting that gets me.