Sealey 8 piece head bolt socket bit set 1 2 sq drive sealey ak5538 head bolt removal tools long reach suitable for modern engines seven drop forged chrome vanadium steel sockets with s2 steel male bits and one single piece chrome vanadium trx star deep socket sockets heat treated and chrome plated with satin finish for resistance to corrosion knurled ring on sockets to assist gripping with oily fingers suitable for audi bmw fiat ford mazda mercedes nissan renault and rover vehic