Drilling tools and countersinks from the manufacturer

Drilling creates precise holes in metal, plastic, or composite materials. To this end, LEHMANN GMBH PRÄZISIONSWERKZEUGE manufactures technical drilling tools for specific diameters, depths, and surface finishes. Depending on the task, our experts use precision drill bits, step drill bits, or other specialty drilling tools.

For special geometries, we produce drilling tools based on drawings as well as custom-designed drilling tools. In our manufacturing process, we ensure clean cutting edges, reliable chip removal, and adequate cooling. For selected tools, we use a shank conforming to DIN 6535 HB. Our quality management system is certified to ISO 9001:2015. This ensures you receive drilling tools directly from the manufacturer for consistent machining results.

Industrial drilling tools must be extremely precise and durable. High-performance versions made of PCD, CBN or solid carbide are the best choice for demanding tasks. As a drilling tool manufacturer, we rely on innovative materials and specially developed cutting edge geometries to achieve the best tool life and maximum precision. The right choice depends on the material, cutting speed and area of application. Aluminum or fibre-reinforced plastics, for example, require PCD tools, while hardened steel is optimally machined with CBN. Solid carbide is particularly robust.

Precise adjustment to machine parameters ensures maximum efficiency. The coating also plays a decisive role. High-quality coatings reduce friction and significantly extend service life. Individual custom-made products guarantee optimized results in series production and complex machining operations. The choice of the ideal tool not only influences the drilling quality, but also the cost-effectiveness of the entire process.

Off-the-shelf drilling tools are often not the best choice when it comes to precise and efficient production processes. Customized special tools offer clear advantages. As a drilling tool manufacturer, we produce tools that are perfectly tailored to your requirements. This saves time and reduces rejects. A specially developed tool can combine several processing steps into one, which reduces production times. In addition, tool life is often significantly longer as the tool is precisely optimized for the material to be machined. This means fewer tool changes and higher machine availability. As an experienced supplier of drilling tools, we know that standard solutions often do not deliver optimum performance. Custom-made products can increase cutting speeds and improve surface qualities. Customized tools are indispensable, especially for difficult materials such as titanium or hardened steel. Our many years of experience as a drilling tool supplier show that customers reduce production costs in the long term with customized solutions. Special tools are precisely matched to the machine and the production process, minimizing tolerances and increasing quality. An individually manufactured tool ultimately means fewer rejects, more stable processes and greater efficiency.

Drilling tools have to withstand high loads. A suitable coating is crucial for tool life and performance. Different coatings are possible depending on the task. As a drilling tool manufacturer, we rely on modern coating technologies that reduce friction and increase temperature resistance. A TiAlN coating, for example, ensures a harder surface and is ideal for high-speed machining. AlCrN improves heat resistance and is suitable for materials that are difficult to machine. Uncoated tools wear much faster. Coatings significantly extend the service life of high-strength steels or abrasive materials in particular.

As a supplier of drilling tools, we analyze the application precisely and recommend the optimum solution. The wrong coating can have a negative impact on drilling performance, while a customized version makes machining easier. Our experience as a drilling tool supplier shows that coated tools often last many times longer than uncoated versions. This leads to considerable savings, especially in series production. In addition to standard coatings, special solutions can also be developed specifically for certain materials or machining processes. The right choice of coating makes the difference between average and maximum performance.

Drilling tools made of PCD and CBN are among the most durable solutions in modern manufacturing. PCD (polycrystalline diamond) is perfect for aluminum, plastics and fiber-reinforced materials as it is extremely wear-resistant. CBN (cubic boron nitride) is used for hardened steels and cast iron, as it remains stable even at the highest temperatures.

PCD often lasts ten times longer than carbide, while CBN remains stable under extreme conditions. The choice of the right cutting material depends on the task of the tool. An incorrectly selected tool wears out more quickly and causes higher costs. This is why we, as a drilling tool supplier, analyze the individual requirements and develop tailor-made solutions. These tools are particularly indispensable in the automotive and aerospace industries. Our experience as a drilling tool supplier shows that customers not only save costs with PCD and CBN tools, but also stabilize their production processes. Long-lasting tools mean less downtime, greater precision and more economical production.

Drilling tools only deliver the best results if they are used optimally. Choosing the right material, the right cutting geometry and a coordinated cutting speed are crucial. An important factor is correct cooling. Without sufficient lubrication, wear increases and tool life is drastically reduced. The feed rate and speed must also be precisely matched to the material. Too high values lead to overheating, too low to unclean holes.

As a drilling tool supplier, we help you to find the optimum process. Regular maintenance and regrinding can significantly extend the service life. A blunt tool causes poor drill holes and increases the load on the machine. Our experience as a drilling tool supplier tells us that even high-quality tools only develop their full potential when all parameters are right. The best combination of tool, coating and machine parameters ensures maximum precision and efficiency. Well thought-out use saves costs, reduces downtimes and increases the quality of production.