Power Miter Box Circular Saw - Bill's Equipment & Supply, Inc.
GreatNeck BSB14 12 Inch Mitre Box With 14 Inch Back Saw, Reinforced Steel Back Saw for Accurate Cutting, Receptacle Box Saw With Degree Cutting Guide - - Amazon.com
Guide to Buying a Traditional Miter Box Saw - YouTube
Project Source Miter Box with Saw Set in the Miter Boxes department at Lowes.com