Tenders for Supply of Arbor For 6 Mm Hand Drill Machine Arbor Shall Have Spindle And Hex Nut Only Without Washer As Per Item Nos.1 And 4 Only, Shown In Drg. No. 4Tmw/Drg- Jt/407/Alt. Supplier Should Submit Nabl Accredited Lab Certificate For Material At The Time Of Supply.