Four Spiral Flute Step Drill Bit Set (1/8"-1-3/8") 5PCS
A 5-piece high-speed steel step drill bit set with 1/4" and 3/8" hex shanks for drilling metal, wood, and plastics. Engineered for smooth, vibration-free drilling with four razor-sharp blades
Highlights
- four cutting blades
- vibration-free drilling
- includes varied hex shanks
Pros
- four-razor-sharp cutting blades
- vibration-free drilling performance
- cuts through steel, aluminum, copper, and more
- high-speed steel construction
- includes 1/4" and 3/8" hex shanks
Cons
- customer insights unavailable
- rating based on limited reviews
- specific material compatibility not exhaustive
Best For
Features
- Four-knife cutting design for precise drilling with reduced vibration
- High-speed steel construction with Rockwell 62-65 hardness for durability
- Set includes 5 pieces with graduated diameters across multiple ranges
- Cuts through steel, aluminum, copper, and other rigid materials with defined step sizes
