High-Speed Steel Construction: Made From Durable Hss With A Black Oxide Coating, Ensuring Longevity And Resistance To Wear And Corrosion. | | Multi-Sized Step Design: Precision Drilling With A Multi-Sized Step Design Allows For Accurate, Clean Drilling In Various Materials, Enhancing Versatility In Metalworking, Woodworking, And Plastic Drilling. | | Sae Standard Compliance: Fully Compliant With Sae Specifications For Universal Compatibility With Drilling Tools, Enhancing Utility And Performance. | | Ergonomic 3-Flat Shank: Designed For A Comfortable Grip And To Prevent Slipping, The 3-Flat Shank Fits Securely In Drill Chucks, Ensuring Efficient Power Transfer And Safer Operation. | | Comprehensive Drill Bit Set: From 3/16" To 1-3/8", This Set Includes Essential Sizes For Diverse Drilling Tasks, Ensuring You Have The Right Bit For Every Application. | | |