Professional tool for commercial or occasional use -Extra-long spline bit sockets -Manufactured from chrome vanadium steel for strength and durability -Spline sockets -Suitable for a wide range of vehicles including VW / Audi including transporter T4 and Touareg. -Hardened and tempered -Extra-long spline bit sockets for loosening drive shaft screws from the outside -Knurled ring on the end of the sockets for use in oily slippy conditions -1/2" drive so will fit any 1/2" drive ratchet / power bar SET INCLUDES THE FOLLOWING SIZES - M9 / M10 / M12 and M14