GEARWRENCH mechanics tools have been designed with the professional user in mind for better productivity, access, and strength. GWXSCBMTS12 is a 27 piece 1/2 in. drive mechanics tool set that features 12 point sockets in SAE and metric standard length. Also included in the set are 1 quick-release 1/2" drive ratchet, 1 extension, 1 magnetic bit holding screwdriver and 4 frequently used bits. Set comes with socket rail and bits holder for storage and organization.