supply and delivery of cutting tools, lubricants etc for klr rig machine in connection with jal jeevan mission programme at jhargram under bankura mechanical division , phe dte.- 1 supply and delivery of 7 7 / 8 dia drag bit ( three hinge bit ) with tungsten carbide insert with threaded pin connection product specification as per stated below.i ) circulation: single jet core circulation with mud water, it should have pin connection of 2 3 / 8api, male thread of at least 12 nos of 2 3 / 8api thread of tool join drill sting.ii ) each hinges should have minimum 7 nos of tc block of approved dimension and to be brazed properly and should not cover with paint.iii ) tc block should brazed at equal pitch length expect top insert iv ) pin connection should be flame hardened to reach the surface hardened up to 150bhn to 200bhn. n.b- materials test certificate in respect of chemical composition and physical properties must be produced at the time of delivery. 2 supply and delivery of 7 7 / 8 rr bit tc insart to drill selimentary rock over burden 4 1 / 2 inch api pin connection details spacification as follows :- a ) bearing types - sealed friction ( b ) circulation: 3jet circulation with mud water c ) oparation paramiters weight of bits 6.4 to 16.8 tons rotating speed 80 to 150rpm make: sandvik / brd / any approved brand.tools should be as per part no. 0101213-03 of sandvik make or equivalenttest certificate must be submitted with sl no of the manufacturer at the time of delivery 3 supply and delivery ofvalve less high speed hammer to be operated at 150 psi air pressure having mirror impact technology. make: sandvik / brd / any approved brand.tools should be as per part no. rh4m098m1n20001 of sandvik make or equivalentn.b-test certificate must be submitted with s.l no of the manufacturer at the time of delivery 4 supply and delivery of 115mm dia. mission -4 model button bit suitable forvalve less hammer for rock well drilling works.make: sandvik / brd / any approved brand.tools should be as per part no. rh-05f6-115j48 of sandvik make or equivalentn.b-test certificate must be submitted with s.l no of the manufacturer at the time of delivery 5 supply and delivery of cotton waste / jute for necessary cleaning of spare parts at the time of operation 6 supply and delivery of following mud pump spares:- 7 liner with inner side hard chromium deposition ( materials en-19 ) ( as per sample ) size-115 mm id × 145mm od × 240mm long for ( for klr rig ) 8 mud pump bucket ( as per dept sample ) 9 valve sheet set ( as per dept sample ) 10 valve sheet rubber insert valve ( as per dept sample ) 11 gland packing for piston rod ( as per dept sample ) 12 supply and delivery of following fuel and lubricants:- 13 servo neum 100 14 servo system 32 ( hydraulic oil ) 15 servo pride xl 15w40 ( ch4 ) 16 servo grease mp3 17 servo gearhp 140 18 elgi compressor oil 20 19 add: 18% gst