PDC Drilling Bits Size Price 3 3/4" $1,650.00 3 7/8" $1,650.00 4" $1,700.00 4 1/8" $1,800.00 4 1/4" $1,800.00 4 1/2" $1,800.00 4 3/4" $1,830.00 4 7/8" $1,830.00 5 1/8" $1,950.00 5 5/8" $2,050.00 5 7/8" $2,250.00 6" $2,400.00 6 1/8" $2,600.00 6 1/4" $2,600.00 6 1/2" $2,650.00 6 3/4" $2,750.00 Premium PDC Drilling Bits Size Price 3 3/4" $2,400.00 3 7/8" $2,400.00 4" $2,450.00 4 1/8" $2,600.00 4 1/4" $2,600.00 4 1/2" $2,650.00 4 3/4" $2,700.00 4 7/8" $2,700.00 5 1/8" $2,850.00 5 5/8" $2,950.00 5 7/8" $3,150.00 6" $3,350.00 6 1/8" $3,550.00 6 1/4" $3,550.00 6 1/2" $3,750.00 6 3/4" $3,900.00