Feature●Material: High-speed steel, titanium coated coating●Structure: Step drill, spiral groove, hexagonal shaft, mm display●[Size] 15 steps (length 4-32 mm), 4-20 mm, 9 steps (length 3.3 inches (105 mm), 9 steps (length 3.3 inches (83 mm), 4-12 mm, 9 steps (length 2.9 inches (73 mm))●Shaft Diameter: 0.25 inch (6.35 mm) Hex Shaft (Charging Impact Driver, Electric Drill, Charging Drill Screwdriver)●Applications: Can be used for home DIY, drilling holes, enlarging holes, chamfering, deburring, etcDescription
[Uses] Thin steel, stainless steel, aluminum, wood, open holes, reaming, chamfering, deburring, thin steel plate or aluminum plate [Features] Set of 3 drills, so there is no need to use multiple drills, so you can use it in a variety of sizes, so you can store it separately. Material: High speed steel. (HSS Steel, High Steel ) surface treated with titanium coating for cutting edge and durability