River Street Metal Finishing, Inc located in Braintree, Massachusetts, conveniently located approximately 20 miles south of Boston, we are easily accessible via Routes 93 and 128/95.Metal finishing services. Precision finishing of aluminum products including anodize, hardcoat anodize, chromate, trivalent chromate & passivation. All finishes certified to military specifications. Masking of critical holes & surfaces a specialty.RIVER STREET METAL FINISHING, INC. has been providing a metal finish of the highest quality to manufacturers and machine shops throughout the New England area since 1991. Our many years of experience and accumulated knowledge have allowed us to reach a high level of expertise in the metal finishing industry. We take pride in our ability to troubleshoot any dilemma you may have in ensuring that your finished product meets all specifications, this includes the precision masking of critical holes and surfaces also pieces requiring multiple finishes. In today’s industry, with increasingly short lead times, we also recognize the necessity of providing on time delivery and strive to meet your scheduling needs. Our NADCAP Accredited Quality Management System ensures that quality control is always in force. Every aspect of production is overseen, from the careful racking of your pieces to packaging your finished product for final shipment. We strive to provide consistent precision finishing on every aluminum part processed in accordance with customer requirements and product specifications. River Street Metal Finishing, Inc. is pleased to welcome you to our web site. Located in Braintree, Massachusetts, conveniently located approximately 20 miles south of Boston, we are easily accessible via Routes 93 and 128/95.