1The kit has 3 different types of drill bits, suitable for different scale operations 2The drill has 2 notch edges, cutting faster and more glossy 3Hex handle makes the installation more compact and prevents slippage when chuck 4Made of high-quality HSS steel, so it has high hardness and is more durable 5Can be used to cut holes in a variety of materials, including steel, brass, wood, plastic, etc.