Drill collars

13 March 2019
13 March 2019
13 March 2019
13 March 2019
13 March 2019
13 March 2019
13 March 2019

Drill Collar with slip recess

Drill Collar notation Thread type D DC d inches mm inches mm inches mm 79 x 32 NC 23 31/8 79,4 27/8 73,0 11/4 31,8 89 x 38 NC 26 31/2 88,9 33/16 80,9 11 ...
13 March 2019
13 March 2019

Drill Collar with elevator recess

Drill Collar notation Thread type D DE d inches mm inches mm inches mm 79 x 32 NC 23 31/8 79,4 213/16 71,4 11/4 31,8 89 x 38 NC 26 31/2 88,9 31/8 79,4 11/2 ...
13 March 2019