Features: Material: High‑speed steel, high hardness, no rust, corrosion‑resistant. Longer life and durability. Products can be mounted on bench-drill, drilling and general hand drill, suitable for processing template, wood, plastics, foam and so on. Wide Use: The straight shank layout of these twist-drills is more suitable for many electric drills. Surfaces treatments of smoothes makes it sturdy, withstand heavy duty operation for long service life. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: High Speed Steel Size: 22mm Shank Diameter: 1/2" Overall length: 14.5-15cm Uses: suitable for drilling plastics, wood, plywood Package List: 1x 1/2" Reduced Shank Drill Bit