DCDMA Drill Pipe

All drill rod products are manufactured from a Cold Drawn, high carbon steel tubing which is equal to or exceeds the minimum tensile strength required by the DCDMA standards. Use of this high quality steel assures a product that will withstand drilling and driving under the most severe conditions. There is 100% inspection of all threads during the manufacture of drill rod and drill rod couplings.

As required, all thread specifications on drill rod and drill rod couplings meet the thread standards set by DCDMA and will therefore interchange with products manufactured by other DCDMA members.

Drill rod couplings are made of AISI 4140 alloy steel and are heat treated to assure durability. Drill rod may be purchased in stock sizes of 5ft or 10ft. Many other lengths are available to meet specific drilling needs.

SQUARE THREAD & DCDMA THREADS

Drill Rod Types:

•“W” Series

•"J" Series

•H.T. Wireline

•H.T. Thin Wall Wireline

•API-Waterwell

•Metric and Standard Available

Accessories:

•Rod Wipers

•Clean Out Taps

•Heavy Duty Hoisting Plugs

•Pull Plates

•Holding Irons

W & WT Series

Both W and WT casing are designed to Standard DCDMA W sizes, which allow nesting of casing. They are both made from parallel wall C80 tubing compatible with Q™ wireline in-hole tools. W casing is intended for single use or situations where the casing is left in the hole. The W thread is a straight thread with 4 threads per inch. This casing is universal in design and can be used in any drilling application. WT casing is engineered to surpass expectations for a casing and features quicker make-up and easier break-out characteristics than the standard W casing. The WT tapered HD thread (2.5 threads per inch) provides increased strength and works well under difficult drilling conditions and allows for repeated use.