We use cookies - click here to manage
Follow us on Twitter Find us on Facebook

Parallel and Taper Threaded Drill Rods

Parallel Threaded Rods

Available in Metric diameters 42mm and 50mm, and in DCDMA diameters AW – HW. Each rod consists of a steel tube with female threads at both ends, and a replaceable pin-to-pin coupler. The rod tube is manufactured from high quality seamless carbon steel of high strength and uniformity. The male-threaded couplings are manufactured from heat-treated alloy steel for maximum toughness and wear resistance. The rods are suitable for rotary drilling applications.

Taper Threaded Rods

These drill rods have replaceable male and female tool joints screwed into the rod tube. The tool joints are manufactured from heat-treated alloy steel for maximum toughness and wear resistance. The rod tube is manufactured from high quality seamless carbon steel of high strength and uniformity. The rods are suitable for rotary drilling applications.

 

Technical Data

Parallel Thread

Rod Type

Rod O.D. (mm)

Rod I.D. (mm)

Coupling I.D. (mm)

Threads per inch

42mm

42.0

32.2

22.0

4

50mm

50.0

37.0

22.0

3

EW

34.9

22.2

11.1

3

AW

44.4

31.7

15.9

3

BW

54.0

38.0

17.5

3

NW

66.7

50.8

35.0

3

HW

88.9

72.0

60.3

3


Tapered Thread

Rod Type

Rod O.D. (mm)

Rod I.D. (mm)

Toot Joint I.D. (mm)

Thread Type

BWY

54.0

38.0

19.0

BWY (5 tpi)

NWY

66.8

54.0

31.7

NWY (4 tpi)

HWY

88.9

73.0

44.4

2 7/8 API I.F.

(4 tpi)

HY

88.9

73.0

31.7

2 7/8 API Reg 

(5 tpi)

NWY

66.8

54.0

31.7

NWY (4 tpi)

 

Technical Standards

Manufactured in accordance with International Standards:

ISO 3551-2 : 1992, Rotary core diamond drilling equipment - System A – Part 2: Inch units

ISO 3552-1: 1992 Rotary core diamond drilling equipment - System B: Metric units.