Step drag bits with PDC cutters

We can supply different diameter of 2-wings drag bit, 3-wings drag bit, 4-wings drag bit, and 6-wings drag bit. Specifications of PDC drag drill bit Size Type Pin Wt. (lbs.) 1 3/4" ~ 2 1/2" AW, A-Rod 2 2 5/8" ~ 2 7/8" AW, A-Rod 2 1/2 2 3/4" ~ 3 1/4" 3THD/4THD N-ROD 2" IF 4 3 3/8" ~ 3 3/4" 3THD/4THD N-ROD 2" IF 4 1/2 3 7/8" ~4 3/4" 2 3/8" API Pin 6 4 7/8" ~ 5 1/8 2 3/8" API Pin 7 5 1/4" ~5 1/2" 2 3/8" API Pi