Description These Dewalt extreme step drill bits are designed for drilling and enlarging holes into substrates such as ferrous and non-ferrous metals, construction steel, slim and plastic rimmed materials. Features: Manufactured to enlarge holes from 4mm to 22mm Ultimate performing step drill bit Made from titanium which reduces heat production and increases durability Has a round shank Step drill bit – quick reference Code Size Qty DTSDB-DT90246-QZ 4.0 – 22.0mm 1 DTSDB-DT90247-QZ 5.0 – 35.0mm 1 DTSDB-DT90248-QZ 6.0 – 20.0mm 1 Step drill bits are sometimes referred to as Christmas trees
