What is Drill Rod? Ground & Polished - Precise tolerances
Drill rods are round metal bars that have been ground or even polished to a high-precision diameter and are typically made of high-quality tool steel. Drill rods are 100% decarburization-free and are primarily used in mechanical engineering and the tool industry. The type of steel can vary depending on the application.
Common steel grades for tool steel drill rods include:
• O1
• W1
• S7
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WHAT ARE DRILL RODS USED FOR?
As previously mentioned, drill rods are not only suitable for drilling tools. They can be used for the production of a variety of tools and devices.
A brief overview of the applications includes:
• Punches and dies
• Machinery components
Drill Rods for the Production of Punches and Dies
Drill rods are used in metalworking to produce precision tools that can shape or cut metal.
Drill Rods for the Production of Machinery Components
Drill rods are also used for the production of shafts, mandrels, bearings, or guiding elements.
Drill Rods for the Production of Tools
Drill rods can be used to produce items such as dowels, drills, taps, tension pins, reamers, knives, and firearms.
HOW IS DRILL ROD MADE?
Drill rods are made from high-quality alloyed steel. The chosen type of steel depends on the intended application of the drill rods. High tensile strength and resistance to bending and breaking are desired characteristics.
To enhance the strength and durability of the drill rods, undergo a heat treatment process. This typically involves heating and cooling the steel. The exact parameters depend on the type of steel and the desired properties.
The methods for hardening the steel of the drill rods can be broadly defined into three categories:
• Oil hardened
• Water hardened
• Air hardened
After manufacturing, the drill rods are thoroughly inspected for their quality. This ensures that they meet the specified requirements and do not have defects that could cause problems during use. Inspections can include visual checks, dimensional controls, and tests for mechanical properties.