3PCS Premium HSS & Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects
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- 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).
- 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.
- 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.
- 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, wood, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting.
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