supply of set of sockets (bihexagonal & hexagonal)set of sockets (bihexagonal & hexagonal),set of sockets (bihexagonal & hexagonal) 12.7 mm (1/2 inch) square drive, generally confir ming to is: 6131-1980 & 7381-1986. set consists of 05 items in 05 nos. (1) socket size: 13, qty 01 no./set, (2) socket size: 17, qty 01 no./set, (3) socket size: 18, qty 01 no./set, (4) socket size: 19, qty 01 no./set, ( 5) socket size: 24, qty 01 no./set. make : taparia/ de-neers or equivalent. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]