When it comes to drilling, there are an abundance of options on the market. From traditional twist drills to metal hole drills, contractors have plenty to choose from. However, not all construction tools are equipped to handle every job. What you’re working on will determine which drill will be the most beneficial, and if that’s with metal, cement or similar materials, core drilling is the better choice.
Core drilling increases efficiency
Both core and twist drills can be used to cut a variety of elements, including wood, metal, concrete and stone. However, for large projects, a traditional twist drill can be tedious. Drill bits only go up to 1 inch compared to core drill bits, which can cover more than a foot, according to Norton Construction Products. Core drills, which also include hole saws and annular cutters, are used to cut into dense objects without excess chips remaining in the hole. The drill bit only carves the outer circle, allowing the larger slug to be taken out without anything remaining behind. Twist drills, on the other hand, leave dust in the hole, which can affect any future work.
They also require more horsepower in power tools than you would need with another drill. Since there are fewer cutting points on the drill bit, the amount of energy you exert needs to be able to force the drill through the material, Unitec, Inc. explained. The user must put pressure on the drill in order to make any progress. Core drills are the opposite. Since there are many edges cutting the material as opposed to just one, they require less energy for the same amount of work.
Twist drills inexpensive, but less cost-effective
Every drill bit will have general wear and tear after extended use. However, since twist bits tend to be less expensive and require more power behind them, they aren’t as durable. Unless you’re
willing to dish out the big bucks, steel bits, such as carbon, high speed and cobalt, won’t last as long, according to eReplacement Parts, Inc. Since they require more pressure, they’re overworked and overheated on denser materials.
“Diamond bits last four times longer than steel ones.”
Core drills, on the other other hand, usually utilize diamond or carbide-tipped bits. Even though the base of it is still metal, the diamond and carbide tips make them more durable and cost-effective. Standard diamond bits can last up to four times longer than regular steel ones, Do It Yourself, Inc. explained. Both carbide and diamond are harder than steel, which allows them to chisel through hard materials, such as cement or metal, without being damaged or harming the construction supplies. There will be a smooth, clean-cut hole instead of ragged edges on the exit side as there can potentially be twist drilling.
Even though the project determines what kind of hand tools you use, all kinds of drilling are useful for a mixture of tasks. Twist drills are better for smaller, less complicated jobs while core drilling is more useful for larger projects, such as installing pipes. Deciding how large of a hole and how many of them will need to be drilled will help you choose which drill to use.