Brand new Extra long beam pattern allows for maximum access The double flexing head design helps eliminate those nagging obstacles that interfere with the installation or removal of fasteners Loosen or tighten any 6 point, 12 point, spline, TORX, square and even up to 50% rounded off fasteners Includes sizes: 8mm x 10mm, 12mm x 14mm, 13mm x 15mm, 16mm x 18mm, 17mm x 19mm