![]() Not using coolant will also blunt the quick drills. It would be best not to use the masonry drills bits drilling hard metal surfaces such as iron, steel, cast iron, etc. The drills will quickly fail and wear out if you use the masonry drill without specialized properties. ![]() Masonry drill have a high hardness, usually made of alloy steel or carbide. You can use its drilling brick, stone, concrete, etc. Construction drills bits are commonly used in hammer drill. The construction drills bits has a wider arrow shape than the bits body. The masonry drills bits look like it is twist-shaped.
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