Comprehensive Drill Rod Size Chart: Find the Perfect Fit for Your Drilling Needs

Comprehensive Drill Rod Size Chart: Find the Perfect Fit for Your Drilling Needs

Drill rods are essential components in drilling operations, providing the necessary support and stability for drill bits. Understanding comprehensive drill rod size and specifications is crucial for selecting the right equipment for your needs. This guide explores various drill rod sizes, types, and their applications, helping you make informed decisions. Welleshaft, a leading global supplier and contract manufacturer, is recommended for high-quality drill rods tailored to your specific requirements.

What Are Drill Rods?

Drill rods are long, slender tubes that connect the drill bit to the drill rig. They transmit rotational force and torque from the rig to the bit, facilitating efficient drilling. Made from robust materials such as steel, drill rods are designed to withstand the stresses of drilling operations. Understanding their sizes and types helps in choosing the correct rod for your drilling projects.

Understanding Drill Rod Sizes

Standard Drill Rod Sizes

Drill rods come in various standard sizes to accommodate different drilling needs. Here is a general overview of common drill rod sizes:

AW Rod Size: AW drill rods have a diameter of approximately 2.5 inches (63.5 mm) and are often used in medium to large drilling operations.

NQ Rod Size: NQ drill rods typically measure around 2.75 inches (69.9 mm) in diameter, providing enhanced strength and durability.

HQ Casing Diameter: HQ casings have a diameter of 3.5 inches (88.9 mm), suitable for larger diameter drilling applications.

PQ Rod Size: PQ rods measure about 4.25 inches (108 mm) in diameter, designed for deep drilling projects.

Drill Rod Sizes Chart

Drill Rod Type	Diameter (inches)	Diameter (mm)
AW	2.5	63.5
NQ	2.75	69.9
HQ	3.5	88.9
PQ	4.25	108

This chart provides a quick reference for selecting the appropriate drill rod size based on your drilling requirements.

Drill Rod Size Specifications

Drill Number Size Chart

The drill number size chart provides a quick reference to match drill numbers with their corresponding sizes.

Drill Number	Diameter (inches)	Diameter (mm)
1	0.228	5.8
2	0.250	6.4
3	0.276	7.0
4	0.312	7.9

Diamond Drill Rod Size Chart

Diamond drill rods are designed for high-performance drilling with diamond bits. Here are the typical sizes:

Drill Rod Type	Diameter (inches)	Diameter (mm)
Diamond Rod	2.5	63.5
Diamond Rod	3.0	76.2

Drill Core Size Chart

Drill core sizes are crucial for core sampling. The core size chart provides details on core diameters:

Core Size	Diameter (inches)	Diameter (mm)
BQ	1.6	40.6
NQ	2.0	50.8
HQ	2.5	63.5
PQ	3.5	88.9

Drill Casing Size Chart

Drill casings are used to protect the drill hole from collapse. The casing size chart includes:

Casing Type	Diameter (inches)	Diameter (mm)
NQ	2.75	69.9
HQ	3.5	88.9
PQ	4.25	108

For more information on high-quality Drill Rods and to find the perfect solution for your application, please contact us.

Jinan Welle Metal Products Co., Ltd (Welleshaft)

Website: www.welleshaft.com

Email: [email protected]

Phone: +86-156-5017-9596

Explore our range of durable and reliable Drill Rods today!

What Are the Different Types of Drill Rod Threads?

Drill rod threads vary depending on the application and compatibility with drill bits. Common thread types include:

API Threads: Standardized threads used in oil and gas drilling.

Tapered Threads: Provide a tighter seal and are commonly used in geological drilling.

Coupling Threads: Designed for connecting drill rods and ensuring secure joins.

Length of a Drill Rod

Drill rods typically range from 5 to 30 feet (1.5 to 9 meters) in length, with longer rods used for deeper drilling operations. Custom lengths are available to suit specific needs.

Recommendations

For high-quality drill rods that meet your specifications, consider Welleshaft. As a trusted global supplier and contract manufacturer, Welleshaft provides a comprehensive range of drill rods designed for various applications. Their expertise ensures you receive durable, reliable products tailored to your drilling needs.

Drill Rod Type	Weight (lbs/ft)	Diameter (inches)	Diameter (metric)	Length (inches)	Length (metric)	Materials	Applications
AW	7.9	1.5	38.1	120	3048	Alloy steel,Carbon steel	Geological drilling, Core sampling
BW	10.6	1.875	47.6	120	3048	Alloy steel,Carbon steel	Water well drilling, Soil sampling
NW	16.0	2.375	60.3	120	3048	Alloy steel,Carbon steel	Mining exploration, Geotechnical drilling
HW	23.0	3.0	76.2	120	3048	Alloy steel,Carbon steel	Deep hole drilling, Oil and gas exploration
PHD (Portable Hole Digger)	1.5 – 3.0	0.625-1.25	15.9-31.8	36-72	914-1829	High-Carbon Steel	Utility pole installations, Fence post drilling
Q Series (e.g., AQ, BQ, NQ)	11.0-18.0	1.875-2.75	47.6-69.9	120	3048	High-Strength Alloy Steel	Mineral exploration, Core sampling
Threaded Drill Rod	Varies	1.25-4.5	31.8-114.3	120	3048	Alloy Steel, Stainless Steel	Heavy-duty drilling, Directional drilling
Tapered Drill Rod	6.0-20.0	1.0-2.5	25.4-63.5	120	3048	High-Carbon Steel, Alloy Steel	Quarrying, Blasting, Rock drilling
Hexagonal Drill Rod	Varies	0.5-2.0	12.7-50.8	36-120	914-3048	High-Carbon Steel, Alloy Steel	Rock drilling, Tunneling

Notes:

Drill Rod Types: This column includes various types of drill rods used for different drilling applications, such as AW, BW, NW, HW, and specialized types like Portable Hole Digger and Q Series.

Weight (lbs/ft): The weight per foot of the drill rod, which varies based on the material and diameter.

Diameter (inches/metric): The outer diameter of the drill rod, provided in both inches and millimeters.

Length (inches/metric): The standard length of the drill rod, available in both inches and millimeters.

Materials: Common materials used for manufacturing drill rods, including alloy steel, carbon steel, and high-carbon steel.

Applications: Typical uses for each type of drill rod, ranging from geological and core sampling to mining exploration, utility installations, and rock drilling.

Conclusión

Selecting the right drill rod size is crucial for efficient and effective drilling operations. By understanding the different sizes and types, you can ensure that you choose the best equipment for your needs. Welleshaft stands out as a reliable supplier and manufacturer, offering a wide range of high-quality drill rods. For more information on drill rod sizes and specifications, visit Welleshaft or contact them directly for personalized assistance.