drill bit sub adaptor crossover sub

Material

4145H

Model A

2 3/8''IF(box or pin)-2 7/8''IF(box or pin)

Model B

2 3/8''IF(box or pin)-3 1/2''IF(box or pin)

Model C

2 3/8''IF(box or pin)-4 1/2''IF(box or pin)

Model D

2 3/8''reg(box or pin)-3 1/2''IF(box or pin)

Model E

2 7/8''reg(box or pin)-3 1/2''reg(box or pin)

Model F

2 7/8''reg(box or pin)-4 1/2''reg(box or pin)

Model G

3 1/2''IF(box or pin)-4 1/2''reg(box or pin)

Model H

4 1/2''reg(box or pin)-6 5/8''reg(box or pin)

Model I

6 5/8''reg(box or pin)-3 1/2''IF(box or pin)

Model J

4''FH(box or pin)-5 1/2'' FH(box or pin)

Note: Stabilizer can be made according to customer’s special requirement.