don't laugh. we bought an oyster golden A5 clipper(for dogs)at an antique store. it was like new with 2 clipper heads. there is no plastic guard as each head (two piece) cuts to a precise height. we use the 1/8 in head as she gives me a buzz. the blades are extremely sharp and cut quickly. the motor is very quiet and replacement parts are available. it is far superior to any clippers that i have ever bought for human hair. cost new about $130-140.
when she is done, i usually sit and shake hands!