supply of heavy duty pneumatic impact wrench etc. , heavy duty pneumatic impact wrench 3/4 square drive product cp 6768ex-p18d atex mfg. by chicago pneumatics or model no. fw-250-2 bf or fuji japan or model no. w2420 of altas copco or mode l no. 607450622 of bosch india, product as per specification attached in annexure-a. [ warranty period: 12 months after the date of delivery ] ] , heavy duty pneumatic impact wrench 1/2 square drive suitable for m6 to m16 fastener ass emblies product cp 6748ex -p11r-atex mfg. by chicago pneumatic or model no. fw-14ph-2 bf e of fuji ja pan or model no. w2915 of atlas copco or model no. 0607450628 of bosch india.product as per specification attached in annexure-a. [ warranty period: 12 months after the date of delivery ] ]