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

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 adjust the force. strike.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 PlatingShank Type: Round ShankColor: SilverModels: 5-35mmShank Diameter: 13mmHole 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