7PCS Cobalt Center Drill Bits Set, M35 High Speed Steel 60-Degree Angle Center Drill Bits Kit Countersink Tools for Lathe Metalworking Size 1.0 1.5 2.0 2.5 3.0 4.0 5.0

Crafted with Excellence: M35 High-Speed Steel for Dependable Performance. Our center drill bits are meticulously crafted using M35 High-Speed Steel, renowned for its solidity and high temperature wear resistance. 7 Pieces Center Drill Bits Set: A Must-Have for Precision Metalworking: 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, and 5.0. Versatility Meets Practicality. Compatible with lathe machines and most electronic drills, these center drill bits offer versatility across multiple metalworking applications. From general drilling to creating perfect starter holes, each task becomes seamless with the right tool at hand. Tips for Optimal Performance To maximize the potential of your center drill bits, here are some handy tips: 1. Securely fix the workpiece in the lathe machine to prevent any wobbling during rotation, ensuring precise drilling. 2. Before drilling, ensure the surface is free from impurities. Use oil or suitable lubricants to protect the bits and enhance drilling efficiency. 3. When drilling, it is recommended to go 2/3 deep on the tapered section for optimal results. 4. Pay attention to the drilling sound. If any abnormalities occur, immediately cease drilling, address the issue, and resume after rectification. 5. Maintain cleanliness by cleaning the center drill bits before and after each use. Apply oil to store them properly, preventing rust and preserving their quality.

• Premium Quality: M35 high speed 5% cobalt steel, gives our center drill a greater hardness, resistance to wear, heat and toughness. The curved root of the drill drastically reduces the risk of breakage
• Cut Precise Holes Efficiently: Sandblasting passivation surface treatment and fully ground body process ensure more accurate and smooth drilling. Arcuate spiral groove provides excellent chip removal and heat removal. 120° split point prevents walking and makes drilling precise and faster
• Wide Application: Perfect for drilling center holes with most lathe machines and power drills in Stainless Steel, Hardened Steel, Carbon Steel, Alloy Steel, Cast Iron, Aluminum, Copper, Wood and other hard metals
• Portable and Convenient: Our chamfering tools come with a portable case and say goodbye to lost bits and restless searching for the right tool
• 7 Sizes Fit All Needs: Includes 7pcs centering drill bits with 7 most commonly-used sizes, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0