12.5mm 1/2 DRIVE BI-HEX SOCKET SET 13PCS DN-13 SAE (N) CHROME VANADIUM STEEL. CHROME VANADIUM STEEL & TRIPLE CHROME PLATED. 3/8 – 1-1/4 SAE. BULK INQURIES ARE ALSO ACCEPTED AT ATTRACTIVE PRICES.. ! THIS ABOVE LISTING IS QUANTITY FOR 1 PISTON IE 1CYL. IF, YOUR ENGINE IS FOR 2CYL / 3CYL / 4CYL / 6CYL […]