5-teiliges Stufenbohrer-set Mit Titanbeschichtung – Vier Spiralförmige Aussparungen – 1/4"-sechskantschaft – 50 Größen – Edelstahl, Aluminium, Holz – 1/4" – 5-teilig

[Quadriblade Precision, Easy Drilling] Quadriblade step drilling ensures fast and smooth drilling through steel, aluminum, copper, and other hard materials, just like a hot knife drilling through butter! [Titanium Coated High-Speed Steel, with Excellent Durability] These drills are made of titanium-coated high-speed steel (HSS) with excellent hardness that cuts through hard materials faster and withstands high temperatures and sustained cutting force. This 5-piece set includes a wide range of diameters, from 3/16" to 1/3/8", making it perfect for various drilling tasks, from small precision holes to larger openings. The 1/4" hex handle and quick-release groove ensure a secure connection and easy bit replacement. The four-groove design efficiently removes chips, reduces clogging, and increases drilling efficiency. [Organized Storage and Clear Marking] Includes a convenient storage box for easy organization and carrying. Each drill bit has a clear size indication for quick identification and saves time. [Tip] The temperature of the drill bit will rise due to high-speed rotation. It is recommended to cool the drill bit by adding cutting oil or spraying water during continuous operation, which effectively extends the lifespan of the stepped drill bit.