bids are invited for drilling accessories jack hammer rock drilling with chuck size h22x108 mm as per specifications mentioned in atc make chicago pneumatic or epiroc or atlas copco only. , pusher leg with attachment mtg clamp and brackets for jack hammer, make chicago pneumatic or epiroc or atlas copco only. , pneumatic air hose pipe 20 mm inner dia , 232 psi , inner 2 braided having abrasion resistance outer cover synthetic and oil resistance inner lining conform to is 9111986, warranty 1000 hrs , pneumatic air hose pipe 20 mm inner dia , 232 psi , inner 2 braided having abrasion resistance outer cover synthetic and oil resistance inner lining conform to is 9111986, warranty 1000 hrs . , male coupling size 20 mm dia isi marked , female coupling size 20 mm dia isi marked , y connector 20 mm oblique 3 by 4 inch dia isi marked , hose pipe joint connector nipple 20 mm isi marked total quantity : 1590