HSS Titanium-Coated Spiral Groove Step Drill 4-Piece Set with Automatic Center Punch, 1/4\ Hexagon Shank Drill bit, for Plastic, Wood, Metal, Multi-Hole Taper Drill bit Set
- [Quality Material:] HSS 4241 & classic high speed steel with titanium coating for strength and longevity. Coated by titanium,this step drill set performs well in heat,corrosion and rust resistance..
- [Package ] 4-Piece HSS Groove Step Drill Bit (4-12/ 4-20/ 4-32mm ) + 1 Automatic Center Punch..
- [Wide Application] Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal..
- [Easy Drilling] Two-fluted design provides faster, smoother cutting, provided with small pressure and the sets. Stepped grooves prevent slippage in the chuck..
- [ Various Specifications]The titanium coated step drill bit set has 28 different apertures. They can process different kinds of diameter holes, which greatly saves you a lot of trouble..