Twist drills do not make accurately sized or good finish holes; a reamer of some type is often used to cut the final size and finish. A reamer will not make the original hole; it will only enlarge a ...

Baptiste Marx] shares his take on designing emergency structures using PVC pipe in a way that requires an absolute minimum of ...

Equipment Description 4 INCH OD NEW UNUSED GRADE S135 DRILL PIPE 14 LBS PER FT QUALITY WITH API NC40 THREAD CONN WITH CASING FRIENDLY HARD BANDING ON BOX ONLY, TOOL JOINT 5 1/4" OD x 2 11/16" ID x 4" ...

Natural gas forward prices lost ground during the Sept. 18-24 trading period, echoing weakness in October futures that have not regained the $3/MMBtu level since last week’s bearish storage report.