Our conical reamer — engineered for accurate, faster hole enlargement in hard materials. Key benefits Easier work with hard materials: A high-quality coated cutting surface provides strong wear resistance and sustained cutting performance so you can process concrete, tile, marble and artificial stone with less effort and fewer tool changes. Smooth, controlled hole sizing: The unique multi-layer, conical design lets the tool adjust the hole diameter gradually during operation, giving you precise, repeatable results and reducing chipping or cracking. Save time and increase throughput: Designed to speed up hole expansion, the reamer completes diameter adjustments quickly and reliably, minimizing manual rework and improving jobsite or shop efficiency. Versatile and practical: Three sizes are offered to match different hole-diameter requirements, making the tool useful across a range of jobs without overbuying specialized bits. Main features Premium coating for enhanced wear resistance and long-term cutting performance. Multi-layer conical profile that enables stepwise adjustment of hole diameter during drilling. Suitable for hard masonry and stone materials: concrete, tiles, marble, and artificial stone. Available in three sizes to suit different hole enlargement needs. How it solves common problems Prevents material damage: The gradual cutting profile reduces stress on brittle materials, lowering the risk of cracks and chips. Reduces tool swapping: One tool handles progressive hole enlargement, eliminating multiple drills or reaming steps. Improves consistency: The stepwise design produces repeatable hole diameters across multiple workpieces, helping maintain quality on installation and fabrication tasks. Typical applications and use scenarios Tile and plumbing installations: Enlarge tile openings cleanly for pipes and fixtures without cracking surrounding tiles. Construction anchoring: Open up or fine-tune holes in concrete for anchors and fixings with minimal chipping. Countertop and stone work: Adjust hole diameters in marble or artificial stone for sinks, fixtures, or pass-throughs while preserving edge integrity. Who benefits Professional builders and contractors who need consistent, fast hole enlargement in masonry and stone. Interior installers and decorators working with tiles and stone finishes. DIY and home improvement users tackling plumbing, fixture installation, or repair projects. Product notes The tool is offered in three sizes to meet different diameter requirements. Coated cutting surface and multi-layer conical design are intended to extend tool life and provide smooth, controlled cutting performance. If you need a reliable, multi-size solution for enlarging holes in hard materials with minimal damage and faster cycle times, this conical reamer is designed to deliver consistent results across construction, decoration, and DIY projects.