• Made of high-hardness M42 bi-metal (65-66HRC) for increased durability and rust resistance. • 159 mm diameter with a 30 mm cutting depth. • Spring-loaded design facilitates chip removal and increases drilling efficiency. • Includes 8 mm pilot drill bit and hex shank adapter for a secure fit without wobbling. • Versatile use in materials such as wood, plastics, aluminum, steel, cast iron, stainless steel, copper, and PVC. • Compatible with tools such as bench drills, electromagnetic drills, pistol drills, and impact drills.