Sorts of Drill Rod

Drill Rod Spec.

Drilling Depth

Home made

Drill Rod

Planer in and out

Φ43×6mm(Φ1.69×0.24 inch)

1,800 m (5904 feet)

Φ54×6mm (Φ2.13×0.24 inch)

1,300 m (4264 feet)

Φ67×6mm (Φ2.64×0.24 inch)

1,100 m (3608 feet)

Thickened inner

Φ50×5.5mm (Φ1.97×0.22 inch)

1,500 m (4920 feet)

Φ60×6 mm (Φ2.36×0.24 inch)

1,200 m (3936 feet)

Extracting core

with wire line

Φ55.5×4.75 mm (Φ2.19×0.19 inch)

1,600 m (5248 feet)

Φ71×5 mm (Φ2.80×0.20 inch)

1,300 m (4264 feet)

Φ89×5 mm (Φ3.50×0.20 inch)

1,000 m (3280 feet)

DCDMA

(Diamond Core Drill Manufacturer Association)

made

Drill Rod

Thickened inner

BW

1,500 m (4920 feet)

NW

1,200 m (3936 feet)

HW

900 m (2952 feet)

Extracting core

with wire line

BQ

1,800 m (5904 feet)

NQ

1,300 m (4264 feet)

HQ

1,000 m (3280 feet)