Universal Spline Design for use with multiple fastener types: Torx, Square, 6 and 12 Point, Spline and 50% Rounded •Flexible, reversible drive head with 180° range •Extra-Long Body Design •Includes: 8mm x 10mm, 12mm x 14mm, 13mm x 15mm, 16mm x 18mm, 17mm x 19mm