supply of drilling tools for fabrication work in repair and maintenance of water mains in city area under ae maint ww citys section , twist drill h.s.s. parallel shank 1/16 , twist drill h.s.s. parallel shank 2.5mm , twist drill h. s. s. parallel shank 3.0mm , twist drill h.s.s. parallel shank 1/8 , twist drill h.s.s. parallel shank 9/64 , twist drill h.s.s. parallel shank 3.7 mm , twist drill h.s.s. parallel shank 5/32 , twist drill h.s.s. parallel shank 4.1 mm , twist drill h.s.s. parallel shank 11/64 , twist drill h.s.s. parallel shank 3/16 , twist drill h.s.s. parallel shank 5.0 mm , twist drill h.s.s. parallel shank 13/64 , twist drill h.s.s. parallel shank 7/32 , twist drill h.s.s. parallel shank 15/64 , twist drill h.s.s. parallel shank 1/4 , twist drill h.s.s. parallel shank 6.5 mm , twist drill h.s.s. parallel shank 17/64 , twist drill h.s.s. parallel shank 9/32 , twist drill h.s.s. parallel shank 19/64 , twist drill h.s.s. parallel shank 5/16 , twist drill h.s.s. parallel shank 21/64 , twist drill h.s.s. parallel shank 8.6 mm , twist drill h.s.s. parallel shank 23/64 , twist drill h.s.s. parallel shank 3/8 , twist drill h.s.s. parallel shank 25/64 , twist drill h.s.s. parallel shank 10.2mm , twist drill h.s.s. parallel shank 13/32 , twist drill h.s.s. parallel shank 27/64 , twist drill h.s.s. parallel shank 11.5 mm , twist drill h.s.s. parallel shank 1/2 , twist drill h.s.s. parallel shank 17/32 , twist drill h.s.s. taper shank 3/8 , twist drill h.s.s. taper shank 1/2 , twist drill h.s.s. taper shank 13.8 mm , twist drill h.s.s. taper shank 5/8 , twist drill h.s.s. taper shank 21/32 , twist drill h.s.s. taper shank 17.5 mm , twist drill h.s.s. taper shank 3/4 , twist drill h.s.s. taper shank 25/32 , twist drill h.s.s. taper shank 21.0 mm , twist drill h.s.s. taper shank 7/8 , twist drill h.s.s. taper shank 1