Set of Items required for threading of different pipes as follows. 1 ) Threading Machine Dies ( Chasers ) 1/ 2 inch- 3/ 4 inch ( Lever type ) HSN code: 8207, Type BSPT. Qty/ set. = 04 Nos. 2 ) Threading Machine Dies ( Chasers ) 1 inch- 2 inch ( Lever type ) HSN code: 8207, Type BSPT. Qty/ set. = 04 Nos. Note: One sample of each item should be got approved before effecting bulk supply.