Answer :
Final answer:
A diamond core bit is the best choice for drilling into hard materials like marble or granite due to its diamond segments that can grind away the material efficiently and precisely.
Explanation:
When using a hammer drill on hard materials such as marble or granite, the best choice is a diamond core bit. Among the given options, the diamond core bit is specifically designed for cutting into very hard materials. The diamond core bit uses diamond segments on the cutting edge to grind away the hard materials, allowing for precise holes to be drilled.
It is important to inspect your borer bit before use. A sharp and undamaged bit edge is crucial for obtaining a clean core sample. Proper maintenance of the bit ensures a smooth drilling process and high-quality results when working with hard materials.
Final answer:
For drilling into hard materials like marble or granite, a diamond core bit is the recommended choice due to its diamond segments designed for cutting hard stone.
Explanation:
When drilling into hard materials such as marble or granite, the appropriate drill bit to use is a diamond core bit. This type of bit is designed to handle the extreme hardness of stone materials. The diamond core bit is embedded with diamond segments for efficient cutting and removal of the material.
In the process of core drilling, the quality of the bit used is crucial. An inspector should ensure that the diamond core bit is sharp and free from damage. A well-maintained edge on the bit will result in a cleaner and more precise core sample, which is essential for qualitative analysis of the material.
