1. Universal hexagonal shank titanium-plated step drill bit. The double-groove design ensures smoother chip removal, and the titanium-plated design enhances wear resistance and durability.
2. Tapered design enables drilling tasks of different diameters. Suitable for materials like wood, metal plates, and plastic.
3. Package details:
3-12mm: Weight 29g, total length 75mm, cutting edge length 51mm, shank diameter 6.3mm, number of steps 10
4-12mm: Weight 28g, total length 67mm, cutting edge length 43mm, shank diameter 6.3mm, number of steps 5
4-20mm: Weight 57g, total length 72mm, cutting edge length 47mm, shank diameter 6.3mm, number of steps 9
(Measured manually, slight errors may occur)