Professional spline sockets for commercial or occasional use Impacted spline bit sockets M4 – M18 spline and tamper spline sockets A selection of 7 spline sockets (M4 – M12) and also 3 tamper spline sockets (M14 – M18) 1/2in drive spline / tamper spline bits 1/2in drive so will fit any 1/2in drive ratchets, extensions etc... Impacted spline bits so suitable for use with high torque tools such as impact guns Manufactured from CR-v S” steel for maximum strength and durability SET INCLUDES THE FOLLOWING • SPLINE BITS – M4, M5, M6, M8, M9, M10 and M12 • TAMPER SPLINE BITS – M14, M16 and M18 Comes in a partitioned metal tin for easy storage and transportation