9 pieces of Impact Torx Plus 6 point Socket Bit Set Kits: IP-20, IP-25, IP-30, IP-40, IP-45, IP-50, IP-55, IP-60, IP-70. The socket bits are 3-1/8" (80mm) long. 1/2" (12.7mm) Sqaure Drive with drive release holes. Drop forged black chrome moly steel (CR-MO). | Industrial grade quality. Suitable for air tools and electric tools. US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI.