High-performance drill bits made from high quality 40CR V steel and high speed steel, engineered for stable, accurate drilling in wood, plastic, fiberboard and soft metals. Key benefits Durable construction: 40CR V steel core with high speed steel cutting edges delivers stable performance and longer service life compared with ordinary bits. Precise depth control: included adjustable depth stop rings let you set and repeat exact drilling depths to avoid over‑drilling and reduce rework. Cleaner, faster drilling: tapered bit geometry promotes efficient chip removal to prevent clogging, maintain cutting speed and produce cleaner hole edges. Versatile use: designed for a range of materials—wood, plastic, fiberboard and soft metals—making the set suitable for carpentry, hobby work and repair tasks. What it does for you Saves time by reducing clogging and the need to clear chips frequently. Improves consistency by allowing repeatable depth settings across multiple holes or parts. Reduces bit replacement and work interruptions thanks to robust material and effective chip evacuation. Typical applications Cabinet and furniture work: drilling precise holes for dowels, screws and hardware with consistent depth control. Plastic enclosure and prototype work: clean holes in ABS or acrylic for fasteners and wiring without cracking. Light metal fabrication and repairs: creating clearance or pilot holes in soft metals for brackets, mounts and small assemblies. Specifications and compatibility Materials: 40CR V steel and high speed steel (as supplied). Includes adjustable depth stop rings for depth-limited drilling. Suitable for use with drills on wood