DescriptionThis item is a set of drill bits with different sizes, and each piece is in brass color. Made of high-speed steel, they are sturdy, durable and practical. Perfect to drill holes on aluminium alloy, thin wood borad, wood slices, plastic and other similar materials.Features- Color: Brass. - Material: High-speed steel. - Dia.: 3mm 4mm 5mm 6mm 6.5mm 8mm - Various sizes are offered to meet different needs. - Made of quality high steel, it is wear resistant and corrosion resistant. - for drill presses and stationary machines. - Accurate size will do the work well. - Note: This item is not suitable for heavy metal drilling. It only suits aluminium alloy, thin wood borad, wood slices, plastic and other similar materials.