This Titanium Coated HSS Drill Bit Set is engineered to deliver the fastest and most durable drill bit hole drilling solution. These titanium coated HSS drill bits deliver best-in-class performance in drills. The hex shank has an optimized body ensuring durability, tight fit, and reducing early shank breaks. The titanium coating delivers longer service life, while the dual spiral flute produces 2x faster holes. The Titanium Coated HSS Drill Bit Set features the #4-12, #4-20, #4-32 step bits for a clear stop on size identification. What You Will Get The Titanium Coated HSS Drill Bit Set is optimized for pistol drills, hand drills, cordless drills, and bench drills Its titanium coating reduces heat Heat-treated and polished, these HSS step bits drill perfectly round holes in steel, brass, plastic, wood, etc. Recessed shank design prevents slippage when in chuck Dual flute design drives faster, smoother, and cleaner cuts, as each step is clearly labeled with the depth diameter Perfect for deburring, chamfering, cutting or expanding holes Using water injection cooling during prolonged drilling can effectively extend the service life of these HSS step bits Product details Length: #4-12, #4-20, #4-32 Available in Spiral and Cone shapes Comes with a bag Material: High Speed Steel Coating: Titanium