Quality Transmission Components, based in New York, US, has released precision 20 degree pressure angle stainless steel miter gears, identified as the SUM Series. These gears are stocked in 10 sizes in modules 1~3 in both 20 and 25 tooth. They are made of SUS303 and conform to precision grade JIS B 1704 grade 3 standards. They are stocked in sizes ranging from Module 1 to Module 3. Bore sizes range from 6mm to 20mm and hub diameters from 16mm to 65mm.