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.
Good Adaptability: It can easily drill the size you need by comparing the laser engraving size in the ladder drill slot. Only a small amount of pressure is required to cut steel, metal plates and other surfaces and remove burrs.
50 Sizes in 5 Pcs : The step drill bit kit includes 5 standard pieces and a center punch (black) with totally 50 sizes for versatility, enough for your DIY needs
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.