TOP Step drill for bolt holes for electric drills, 5 steps, drilling dimensions Φ5.3 to 13.0 ESD-512B 1 piece

Catalog number: ESD-512B Features: ●The industry's first step drill dedicated to pilot holes for bolts. ●5 sizes in one, so you can drill pilot holes without the hassle of changing drills. ●Spiral blade type with good bite and light cutting. ●Titanium coating is applied, which is very effective when drilling holes in stainless steel. ●Prevents chip welding and allows for stable continuous work. Applications: ●Cutting materials: Steel plate (up to 3 mm), stainless steel plate (up to 2 mm), aluminum plate, plastic, wood. ●For drilling pilot holes for bolts in a wide range of fields such as electrical construction and sheet metal construction. ●For pilot holes for M5, M6, M8, M10, and M12 bolts. Specifications: ●Step width (mm): 8 ●Number of steps (steps): 5 ●Shank shape: Hexagonal shaft ●Shank diameter (mm): 6.35 ●Drilling dimensions (φ): 5.3, 6.4, 8.4, 10.5, 13.0 ●Total length (mm): 75 ●Surface treatment: Titanium coating ●Step drill for bolt holes. M5 to M12 sizes available. Comes with a stopper to prevent it from falling out. Material/Finish: ●Cobalt high speed steel Set contents/Accessories: ●None Caution: ●For rechargeable driver drills, use 12V or higher. ●The drill generates heat during use, so touching it with bare hands may cause burns. ●Do not use the tool for any purpose other than its intended use. ●※Be sure to use cutting oil on stainless steel plates.