HSS Step Drill Bit, Double Slotted Conical Milling Cutter, 5-35mm, 13 Steps, Round Shank, Step Drill Cut Holes Tool for Screwdriver, Drilling on Thin Aluminum Sheet, Wood, Plastic

PERFECT SIZE: For precise drilling of various sizes from 5-35 mm in diameter, one drill bit can handle holes of different sizes. QUALITY MATERIALS: Classic high-speed steel with a titanium coating on the surface. Suitable for drilling holes in aluminum plates 1-4 mm thick, also suitable for plastic and wood. LASER ENGRAVING: The size is laser engraved into the metal, so it won't wear down even with repeated use, making precise drilling easier. EASY TO DRILL: The marked hole position and double-flute design make drilling faster and smoother, as well as precise drilling. PRECISION POSITIONING DRILL BIT: When pressed against the surface, it produces an automatic, high-impact, spring-loaded hammering force, and an adjustable cap allows you to regulate the hammering force. The knurled surface of the HSS body is highly non-slip, providing precise positioning points without worrying about deviations. Features: No need to use a center punch; unlike ordinary drill bits, it is not easily broken. With just a small amount of pressure, it automatically burrs holes as you drill. Provides fast, smooth, and clean cuts; each step is clearly marked with the diameter and depth. Specification: Material: HSS Steel with Titanium Plating Shank Type: Round Shank Color: Silver Models: 5-35mm Shank Diameter: 13mm Hole Size: 5mm, 7mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm 25mm, 27mm, 30mm, 32mm, 35mm (13 steps) Length: Approx. 7.2cm / 2.7" Package Includes: 1 x HSS Steel Conical Drill Bit 5-35mm