Drilled Ball BearingsAbbott's largest volume of drilled balls is used in automotive engines. The company is able to drill carbon, brass and stainless steel materials in a wide range of sizes and hole diameters. Our automated systems are capable of producing as many as five million drilled balls per week. Drilled balls are available with both through holes and partial holes. Abbott engineers will work with you to determine the right drill ball for your application. Please contact customer service to discuss your specific requirements.