Core drills
Core drills from RUKO: Precision and efficiency for demanding drilling applications
Discover our wide range of high-quality RUKO core drills for metal cutting. Core drills offer an optimal solution for precise and efficient drilling in the hardest materials such as metal, concrete or stone. RUKO core drills are designed to meet the highest demands and offer excellent performance for professional users in a wide range of industries. From metalworking to construction, as HSS or HSS-Co 5 variants, with TiAlN or without coating - our core drills enable clean and precise drilling, even in demanding applications.
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Core drill for precise drilling in hard materials
Core drills, often referred to as hollow drills, offer a significant advantage over conventional twist drills: instead of removing the entire material, they only drill a ring-shaped cut-out, which minimises material removal and increases efficiency at the same time. This reduces wear and extends the service life of the tool. Core drills are particularly indispensable when working with hard materials such as steel or concrete.
RUKO offers a wide range of core drills that are optimised for different areas of application. Whether in construction, metalworking or industrial production - with RUKO core drills you can achieve precise drill holes that meet the highest quality requirements.
Advantages of RUKO core drills
RUKO uses selected, high-performance materials such as HSS steel and carbide for a particularly long service life and high resistance. The core drills are therefore ideally suited to ensuring precise cuts even under high loads. RUKO offers special coatings such as the TiAlN coating, which provides additional wear resistance and friction reduction. This innovative technology extends the service life of the core drill and ensures that optimum results are achieved even under demanding conditions.
Choosing the right core drill
The choice of core drill depends largely on the material to be processed. Core drills with carbide or HSS cutting edges are suitable for metals such as steel or stainless steel, while diamond core drills are ideal for concrete or masonry.
Depending on the requirements, core drills are available in different diameters and with different cutting depths. RUKO offers a wide range of sizes that are customised to the specific requirements of each drill hole.
Another important factor when selecting a core drill is the type of tool holder. This must match the drill or core drill used to ensure secure and stable fastening.
Applications and areas of use
Core drills are used in various industries and for numerous applications, especially where clean and precise drill holes are required in hard materials:
- Construction: For drilling through concrete and masonry, for example for pipework, cable ducts or anchoring.
- Metalworking: Drilling holes in steel beams, metal plates and other structures.
- Plumbing and electrical installations: Creation of penetrations for pipes and cables in walls and ceilings.
- Industry and mechanical engineering: Precise drill holes for screw connections and mounting holes in machines and systems.
Thanks to their high efficiency and precision, core drills are the preferred choice for drilling in demanding projects where conventional drills reach their limits.
FAQs core drill
Core drills differ from twist drills in that they only cut the edge of the drill hole and leave the core of the material. This means that less material is removed, which increases the drilling speed and extends the service life of the drill bit. Twist drills, on the other hand, drill through the entire material and are ideal for smaller, deeper drill holes.
A core drill is required for drilling applications where precise, clean holes need to be created in hard materials such as metal, concrete, stone or masonry. It is particularly suitable for professional and industrial applications, as its hollow drilling technology minimises material removal and therefore works faster and more efficiently than conventional drill bits.
Core drills can process a wide range of materials, including steel, stainless steel, concrete, natural stone, brick and composite materials. The choice of core drill depends on the material to be processed - e.g. diamond core drills are suitable for concrete and natural stone, while HSS core drills are used for metals.
HSS core drills are made of high-speed steel and are suitable for drilling holes in soft to medium-hard metals such as steel, aluminium and cast iron.
Carbide core drills are particularly hard-wearing and designed for drilling in harder materials such as stainless steel, high-alloy steels and hardened materials. Their cutting edges are made of carbide, which gives them greater hardness and a longer service life.
Diamond core drills are specially designed for drilling in extremely hard materials such as concrete, masonry, tiles, glass and natural stone. The cutting edges are fitted with industrial diamond segments that can also cut through very resistant materials. These drills are often used in construction and renovation work, e.g. for drilling holes for pipework, electrical installations or anchoring.
TCT (Titanium Carbide Tipped) core drills have cutting tips made of titanium carbide and are suitable for materials such as composites, reinforced concrete and plastics.
A core drill works on the principle of hollow drilling and is designed to cut a cylindrical "core" out of the material instead of removing the entire material. This special drilling process differs from conventional drilling methods and offers several advantages, including a higher drilling speed and less material wear.
For core drills, special core drills or magnetic drilling machines are recommended that are designed for use with these drills. Magnetic drilling machines have a magnetic base that fixes the machine to metal surfaces and thus enables stable drilling. Powerful rotary hammers or special core drills are suitable for drilling in concrete or masonry.
To extend the service life of your core drills, you should always set the correct speed and feed rate for the material. Sufficient cooling during drilling reduces heat development and prevents premature wear. Regularly inspecting the cutting edges for wear also helps to maximise service life.
A core drill generally describes a hollow drill bit that performs an annular cut. Diamond core drills are a specific type of core drill that are equipped with diamond cutting edges and are particularly suitable for hard materials such as concrete and stone. However, core drills can also be made of HSS steel or with carbide cutting edges, depending on the application.
The depth depends on the type and length of the core drill. Standard core drills usually offer a cutting depth of 30 to 110 mm, while extra-long core drills can be used for deeper holes. Extra-long core drills enable depths of several hundred millimetres.
Yes, cooling is often necessary, especially when processing metal and concrete. Cooling prevents overheating and reduces wear. Depending on the application, wet or dry drilling can be selected. For hard materials such as concrete, water is usually used for cooling, while some core drills are also designed for dry drilling.