WIOR Professional Aluminum Aluminium Wood Total Review

🧰【50 Sizes in 5pcs】This drill set includes 5 standard uni bit step drill bits, which includes 50 sizes. So you can drill up to 50 holes with different diameters, saving your time and efforts to change bits. And it comes with an extra protective aluminum case for easy select, storage, and organization. 🧰【Sturdy & Durable】Constructed from titanium coated high-speed steel, the metal drill bit set is highly resistant to rust, oxidation, and corrosion and can reduce friction and ensure extreme durability, which will still stay strong after years of use. 🧰【Two-Flute Design & X-Type Split Point】Our stepped drill bit with a 135° X-type split point tip and the self-centering function, adopts the two-flute design, which prevents walking, guarantees a faster and smoother cutting, and allows material particles to escape easily when drilling to keep the drill bit clean. 🧰【Tri-Sided Shank & Easy-to-Read Markings】The unique tri-sided shank design that prevents slipping in drill chunk and reduces shocks, makes the hss drill bit set fit securely into majority pistol drill and drill press. Besides, the easy-to-read step markings are laser-graved, not easy to wear out and save time for you when drilling holes. 🧰【Wide Application】Suitable for drilling holes in plastic, wood, aluminum, copper, iron sheet, and many other types of sheet metal, the 50 sizes carbide drill bit set is ideal for home repairs, general building, and engineering construction use. (Note: The drill bit set is not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls, etc.).