Name: 12-1/4″ New Button Bit (Over Sized) with 6-5/8 API Regular Pin (IADC Code: 522)
SKU: TB121/4522W

3-7/8″ New Steel Tooth bit with a 2-3/8 API Regular Pin (IADC Code: 321)

5-1/2″ New Button Bit with a 2-7/8 API Reg. Pin, Jet Circulation and a Sealed Journal Bearing (IADC Code: 527)