... of the hole and provides weight on the bit for directional drilling while maintaining more flexibility than a drill ... MOD, Non-mag material Specification: 3-1/2", 4-1/2", 5", 5-1/2" Type: Integral & Friction welded Techinical Paramete: ... 21,800 4 38.8 2-1/2 4-1/2 24 4-3/16 NC40 2-1/2 5-1/4 27/ ... 65 120 548,100 47,400 5 49.5 3 5-1/2 24 -1/8 NC50 3 6-5 ... /21 65 120 816,800 66,800 5-1/2 49.6 3-7/8 6 24 5-11/18 ...