General description These 5pcs Wood Drill Bits are designed for precision drilling in wood, plywood, and plastic products. Made from premium tungsten steel and heat treated, these bits ensure high hardness, sharp edges, and smooth cutting performance. Technical specifications Material: Tungsten steel Sizes: 40mm, 45mm, 50mm, 60mm, 70mm Installation Best used with machines that have good fixing performance, such as drilling machines, bench drills, vertical drills, and stand motor drills. If using a hand electric drill, it is recommended to operate with a vise for better stability. Usage Suitable for drilling wood products, drawers, plastic products, wood, and plywood. Other information Each drill bit is individually packed in a plastic bag with oil to prevent rust. Includes a plastic storage box to protect the drill bits from dulling.