MOBILOK™ "J" DRILL ROD
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MOBILOK™ Drill Rod (adopted by D.C.D.M.A.1 as AWJ & NWJ) is a MOBILE DRILL®
innovation designed to withstand the mostrigorous drilling operations including deep
hole rotary drilling, coring and drive sampling. Exceeding D.C.D.M.A. standards, it
has a flush outside diameter for use with any standard chuckand the rod wall and
coupling are designed to maintain a high degree of concentricity throughout the drill
string. The internal diameters are turned smoothly, without corners to ensure the
free flow of air and water. MOBILOK™ tapered threads resist damage and save
valuable time when “making or breaking” joints – 1-1/2 turns make and break a
joint. Constructed of AISI 4140 steel, they are heat treated for durability and inertia
welded to the rod to provide an extremely strong, high quality joint. The rod is
manufactured from AISI 1040 steel with a 100,000 psi yield point. Available in AW
and NW sizes.
1Diamond Core Drill Manufacturer’s Association
Drill Rod O.D. Bore “A” Bore “B” Thds/In
AWML 1-3/8″ (35mm) 5/8” (16mm) 5/8” (16mm) 5
NWML 2-5/8″ (67mm) 1-3/8” (35mm) 1-1/8” (29mm) 5
AWML ROD: 1-3⁄4” (45mm) O.D.
Description Lb/Kg Part No.
1′0″ (305mm) ...........................3 (1.4) .....................566DRILLRODAWJX1
2′0″ (610mm) ...........................6 (2.7) .....................566DRILLRODAWJX2
2′6″ (762mm) ..........................10 (4.5) ....................566DRILLRODAWJX2.5
3′0″ (914mm) ..........................11 (5.0) ....................566DRILLRODAWJX3
5′0″ (1.5m) ..............................20 (9.1) ....................566DRILLRODAWJX5
10′0″ (3.1m) ...........................32 (14.5) ...................566DRILLRODAWJX10
NWML ROD: 2-5⁄8” (67mm) O.D.
Description Lb/Kg Part No.
1′0″ (305mm) ...........................7 (3.2) .....................556DRILLRODNWJX1
2′0″ (610mm) ..........................15 (6.8) ....................556DRILLRODNWJX2
2′6″ (762mm) ..........................13 (5.9) ....................556DRILLRODNWJX2.5
3′0″ (914mm) ..........................18 (8.2) ....................556DRILLRODNWJX3
5′0″ (1.5m) .............................30 (13.6) ...................556DRILLRODNWJX5
10′0″ (3.1m) ...........................60 (27.2) ...................556DRILLRODNWJX10
DRILLERS SERVICE, INC. HICKORY, NC USA 800-334-2308, EXT. 230