Drill through metal easily with help from this alloy drill bit set. The drill bits make a great choice when working with stainless steel, aluminum alloy, titanium alloy, and other high hardness materials. for professionals and DIYers alike, the drill bit set comes in handy for a variety of projects, whether at home or on the jobs. Features - Color: Silver. - Material: Alloy. - Size: 16.00X1.00X1.00cm/6.29X0.39X0.39 inch. - Each drill bit in the set features alloy construction with a surface coating for high hardness, long-lasting strength cutting power. - Even more, thanks to its precision grinding inclined cutter design, each bit ensures fast drilling with excellent chip removal. - Made from alloy, durable, practical and long service life. - Swivel head flips and locks from drilling to driving, works with your own power drill, drill to driving in half of the time. - Perfect for home DIY and general building engineering use. Easy for store and carry.