3PCS Unibit Step Drill Bit Set (1/4"-7/8"), M35 Cobalt, TiAlN Coated for Superior Durability, Spiral Cone Drill for Stainless Steel, Sheet Metal,

3PCS Unibit Step Drill Bit Set (1/4"-7/8"), M35 Cobalt, TiAlN Coated for Superior Durability, Spiral Cone Drill for Stainless Steel, Sheet Metal,

VERSATILE 3PCS SET - Includes three step drill bits with varying sizes: #1 (1/4" - 5/16" - 3/8" - 7/16" - 1/2"), #2 (1/4" - 9/32" - 5/16" - 11/32" - 3/8" - 13/32" - 7/16" - 15/32" - 1/2"), and #3 (5/16" - 3/8" - 7/16" - 1/2" - 9/16" - 5/8" - 11/16" - 3/4" - 13/16"- 7/8"). These metal drill bits come in a box so they can be storage well. PREMIUM M35 HSS - Constructed from M35 high speed steel with 5% cobalt content, these step drill bits offer exceptional durability and superior cutting performance, even on tough materials like stainless steel (＜1mm). IDEAL FOR DIY & PROFESSIONAL USE - Whether you’re a DIY enthusiast or a professional, this step drill bit set is perfect for various applications, including drilling in sheet metal, aluminium, copper, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting. ADVANCED TIALN COATING - The Titanium Aluminium Nitride (TiAlN) coating ensures high hardness and excellent wear resistance, extending the lifespan of the drill bits and maintaining sharpness for longer periods. 118°X TYPE OPENINGS DESIGN - Designed with a spiral flute for smooth, clean drilling and enhanced chip removal. Achieve precise holes effortlessly, reducing the need for multiple drill bits. COMPATIBLE WITH VARIOUS DRILLS - 1/4"(6.35mm) Hex shank design eliminate slipping in drill chuck, these step drill bit for metal are compatible with a range of drilling tools including bench drills press, impact drills, and hand drills, making them a versatile addition to your toolkit. KIND TIPS - To prevent overheating and potential damage to the drill bits, always use cutting oil or spraying water during operation. Proper cooling extends the life and efficiency of the bits. 3PCS Step Drill Bits Set 1/4 inch Shank, High Speed Steel M35 Metal Drill Bits for Drilling Stainless Steel, Aluminium