STOCK DRIVE PRODUCTS / STERLING INSTRUMENT 250 Duffy Ave. • Hicksville, NY 11801 • 516-328-3300 www.sdp-si.com SDP/SI's combination of design, manufacturing and assembly capabilities allows us to meet the critical tolerances and functionality needs of aerospace, medical, and industrial applications. Manufacturing high-precision gears, gear drives, high-quality machined parts, and molded components we provide engineered mechanical solutions and component options. See what SDP/SI can do for you. Categories: Timing Pulleys & Belts • Gears • Gearboxes • Machining - Precision CNC • Machining Certifications: ISO 9001 • AS9100 • BOEING BQMS CERTIFIED