tender for supply of cleaning materials , extra heavy duty flexible shaft having double bound core 19 mm dia made from spring steel wire of best quality and 35 mm dia outer casing made heavy gauge galvanized steel strips with anti-fraction living on full length inside complete with guard coupling and two ball bearing no. 6200 hand piece and oil seal 8 mtrs. long. , tool head cutter complete heavy duty having 15 cutters ( 12 straight and 3 bewel ) made from high carbon steel en-24 / 31 duly harden and tempered with ½” bsw female thread with suitable for 42.6 mm i.d. tube. , turk head brush heavy duty made from high carbon steel wire of 50 swg, 1” metal holder with ½” bsw female thread suitable for 42.6 mm i.d. tube. , turk head brush heavy duty made from high carbon steel wire of 50 swg, 1” metal holder with ½” bsw female thread suitable for 98 mm i.d. tube. , motor coupling socket ( motor bush adopter ) with ½” bsw thread for flexible shaft and motor. as per sample , foundry brush heavy duty made from best quality round spring steel having 5 rows size 6”x3” made from quality wood with handle. , boring tool head cutter suitable for 42.6 mm i.d. tube as per sample. , three phase inducting tefc cleaning motor 5 h.p. along with starter, r.p.m. 2900, volts 415, with handling and clamping, make abb / siemens / crompton. , nipple ½” x ¾” thread