Tender For corrigendum : supply of hss parallel shank drill bit (high cobalt) as per is :5101:1991 (chemical composition grade designation -xtiiomoioco8cr4w2 (co 7.75 - 8.75) as per is:7291-1981,size 4.2 mm(d) optimum drill bit tip type a/d optimum flute angle for use drilling operation on stainless steel .
Tender For corrigendum : supply of hss parallel shank drill bit (high cobalt) m35 as per is 5101:1991 size- 3.2 mm (d) optimum drill bit tip -type a/d optimum flute angle- type n use- drilling operation on stainless steel