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DRILL RODS - WATER WELLS

2.jpg (68678 bytes)Standard Tee-Kee drill rods is manufactured to specifications established specifically for water well and mineral exploration drilling requirements. The rods is available with either flush O.D. or elevator shoulder tool joints, standard recommended sizes are shown in the chart.

The tool joints are made from high quality EN 9 alloy steel, and heat treated to obtain the best physical properties in a combination of hardness, strength and durability.

Rod end machining is performed in a sequence that assures close tolerance concentricity and alignment of the O.D. and threads. Thread and shoulder surfaces are heat treated minimize galling on the initial make-up of the connection.

The following is a guide-line for selecting a suitable Drill Rod:

1. Drill hoisting capacity
2. Size and depth of holes to be drilled.
3.Volume of circulation media available.
4. Type of break-out wrenching available
5. Torsional strength required
6. Pin and box balance in tensile, torsional and bending strength

All popular rotary shoulder connections are available.

Recommended Thread Connections for Fabricated Drill Rods

Drill Rod O.D. (Ins) Thread Connection Standard Thread Connection Joint Size (Ins)
3-1/2 to 4 API Regular 2-3/8
3-1/2 to 4-1/2 API Internal Flush 2-3/8
4 to 4-1/2 API Regular 2-3/8
4-1/2 to 5 API Full Hole 2-7/8
4 to 4-3/4 API Internal Flush 2-7/8
4-1/2 to 5-1/2 API regular 2-7/8
4-1/2 to 5-1/2 API Full Hole 3-1/2
4-1/2 to 5-1/2 API Internal Flush 3-1/2
5 to 6 BECO 3-1/2
5-1/2 to 6-1/4 API Full Hole 4
6 to 6-1/2 API Internal Flush 4
6 to 6-1/2 BECO 4
5-1/2 to 6-1/2 API Regular 4
6 to 6-1/2 API Full Hole 4-1/2
6 to 7 API Internal Flush 4-1/2
6-1/4 to 7 BECO 4-1/2
7 to 7-1/2 API Regular 4-1/2
7 to 7-1/2 API Full Hole 5-1/2
7-1/2 to 8 API Internal Flush 5-1/2
7-1/2 to 8-5/8 BECO 6
7-1/2 to 8-5/8 API Regular 6
7-1/2 to 8-5/8 API Full Hole 6-5/8
8-5/8 to 9-5/8 API Internal Flush 6-5/8
8-5/8 to 10-3/4 API Regular 7-5/8
10 to 12-3/4 BECO 8
10 to 12-3/4 API Regular 8-5/8