supply of se drill modular body of (3l/d) dia 22.5 mm with through coolant, overall length 169 mm, shank dia with suitable crown drill insert dia 22.5mm as per rwf drawingse drill modular body of (3l/d) dia 22.5 mm with through coolant, overall length 169 mm, shank dia with suitable crown drill insert dia 22.5mm as per rwf drawing,se drill modular body of (3l/d) dia 22.5 mm with through coolant, overall length 169 mm, shank dia with suitable crown drill insert dia 22.5mm as per rwf drawing number rwf/a/tl-070. performance/life: (a)each crown /insert should perform for a min of 750 holes of drill depth 72 mm to drg. no.wap/sk/ma-125 alt f i.e.,minimum of 250 axles/side. (b)modular body to perform minimum 25 indexing of inserts. note: one set consists of one drill body & 25 nos inserts/crown. general stores depot/rwf , karnataka 30.00 set