- The unique 1/2″ Square Drive design, suitable for Impact Wrench, 19 size multiple hole stepped up bits, have many steps which contain multiple diameters, convenient to drill different hole size by using a step drill rather than many drills, ideal for DIY projects at home, garden, workshop etc.
- High Speed Steel: The ladder drilling group performs well in heat resistance, corrosion resistance and rust prevention. The high speed steel structure ensures high durability.
- High-visibility silver targets for primary 19 hole sizes; come with 19 sizes (3/16″, 9/32″, 3/8″, 7/16″, 17/32″, 5/8″, 11/16″, 25/32″, 7/8″, 29/32″. 31/32″, 1″, 1-1/16″, 1-1/8″, 1-5/32″, 1-7/32″, 1-9/32″, 1-5/16″, 1-3/8″), so you can drill up holes with different diameters, saving your time and efforts to change bits.
- Fast Chip Removal: Double groove design allows easy particle removal for easy cleaning.
- Versatility and Compatibility: required for manual or professional personnel. The anfrere step drill can quickly drill smooth holes on holes of different diameters such as steel, aluminum, wood and plastic plates.
