VALYRIANTOOL 4PCS Cobalt Single End Countersink Drill Bits Set, TiAlN Coated 90 Degree Heavy Duty M35 Countersink Chamfer Tool for Metal, Stainless Steel, Copper, Wood, 2-5, 5-10, 10-15, 15-20MM

Premium Quality. Crafted from M35 Cobalt High Speed Steel with cobalt coating, our countersink drill bits boast unparalleled toughness, high temperature threshold and long-term durability, delivering consistently exceptional results

Impressive Performance. Used after pre-drilling for screws or deburring holes as well as chamfering the edge of a part, they cut cleanly and are chatter-free. The cone tip assures accurate centering, also the enlarged spiral flute prevents chips from clogging and ejects chips rapidly. Designed to handle tough materials like stainless steel and other high-performance alloys

Versatile Application. Our drill bits are compatible for use with a range of drilling machines, table drills, milling machines, cordless drills and impact drivers. Perfect for machinists, DIY enthusiasts and homeowners

Portable and Convenient. Our countersink chamfer tools come with individual storage cases for easy portability. Say goodbye to lost bits and restless searches for the right tool

Comprehensive Set. This set includes 4 drill bits in varying sizes, with each of the 2-5MM, 5-10MM, 10-15MM and 15-20MM countersink chamfer tools included, providing you with a complete package for all your drilling needs