Pentagonal E-Torx bit sockets in sizes T8, T10, T15, T20, T25, T27, T30, T40 for 1/4" shank. TOPTUL tools are manufactured with the most demanding tasks in mind. Precisely selected materials, high precision workmanship, and resistance to deformation and cracking contribute to their immense popularity and excellent reputation. Combined with exceptional surface finish and affordable price.