
Non-Standard 180° Colorful Flat-Bottom Drill Bits, CNC Drilling and Hole Expanding. No Pre-Centering Required: Operates without pre-centering or fixed points on any workpiece surface. Dual-Function Drilling & Reaming: Seamlessly integrates drilling and reaming capabilities for enhanced efficiency. Versatile Surface Handling: Excels on curved, inclined, countersunk, cross, and thin plate surfaces. Solid Carbide Material: Crafted from solid carbide for superior durability and precision. 100% Product Inspection: Every unit undergoes visual and functional inspection before packing. Flexible Customization Options: Supports full, minor, and flexible customization from samples or designs. Fast Lead Time: Peak and off-season lead times are both within 15 workdays. Low Minimum Order Quantity: Minimum order quantity is just 1 piece for flexible purchasing.