Premium Dual Tube Drill Rod for Reverse Circulation Drilling

STANDARD LENGTHS

Make-up Length 5 ft; 10 ft; 15 ft. and 20 ft.
(also available in metric 1.5 ; 3.0 ; 4.5 and 6.0 meter sizes)

TOOL JOINT O.D.

Heat Treated 4130 Alloy- 34-38 RC
Minimum Yield Strength - 110 ksi
O.D. 4.050” - I.D. 3.000” - Wall 0.525”

OUTER PIPE MIDBODY

Minimum Yield Strength 90 ksi
O.D. 3.875” - I.D. 3.375” - Wall 0.250”

INNER PIPE

Minimum Yield Strength 90 ksi
O.D. 2.250” - ID 1.937”- Wall 0.156”

INNER PIPE ENDS

Male - 4130 Alloy - 42-45 RC
Female - 4130 Alloy - 34-36 RC

ROD WEIGHT

154 lbs per 10 ft., 83 lbs per 5 ft.

TORQUE RATING

7,000. ft.-lbs (9,490 N-m)

TENSION RATING

90,000 lbs (40,823 kg)

FLATS- BOX & PIN

3.250” across x 2.500” high
5.00”Box, 1.5” Pin from shoulder

O-RINGS

2 each Nitrile #228

INNER TUBE SEALING

Inner tubes make up and seal along with
tool joints