COMPLETE SET: This 7 Piece High Speed Steel (HSS) Drill Bit Set includes sizes from 1/16" to 1/4". Perfect for all pilot and clearance hole applications. DURABLE MATERIAL: Made from durable HSS, these drills are suitable for metals, alloys, plastics, and all timber applications, ensuring long-lasting performance. SECURE GRIP: Each drill bit is fitted into a spring steel collet-style chuck for maximum grip, preventing slippage during use for precise, accurate drilling. QUICK RELEASE: Compatible with the quick release system, this set is perfect for fast changes between jobs, enhancing productivity and performance. WIDE APPLICATION: This set provides fast, accurate drilling across a wide range of materials, making it an ideal addition to any toolkit.