Specification: 5Pcs Step Drill Bits with OPP BagMaterial: HSSCoated: Titanium PlatingShank: Triangle ShankSize: 1/8-1/2, 3/16-1/2, 3/16-7/8, 1/2-3/4, 1/4-1-3/8 InchFeatures: 1. Made of hss, sharp and durable to use.2. Fits for electric drill, power drill, bench drill and most power tools.3. Perfect for drill metal sheet, wood, steel and etc.4. 1 drill includes multiple diameter.Package Contents: 1#: 5Pcs Step Drill Bits with OPP Bag