A saw guide for guiding a surgical saw or drill includes a guide portion having one or more guide slots, the one or more guide slot or hole configured to guide a surgical saw or drill. The guide portion has an attachment portion forming a clamping slot between the guide portion and the attachment portion. A clamp locking mechanism is assembled to the guide portion and has one or more cams in contact with the attachment portion. An alignment system for surgical bone cutting procedures is provided that includes bone pins inserted within a virtual plane relative to a cut plane to be created on a subject's bone. One of the aforementioned guides is configured to be received onto the bone pins, one or more guide slots within said guide, said one or more guide slots configured to guide a surgical saw to make surgical cuts on the subject's bone.