Durable 3 mm carbide drill bit for glass and ceramic Purpose-built for glass, ceramic and porcelain: makes clean, precise holes with minimal chipping. Size and range: this listing is the single 3 mm bit. The same style is available in sizes from 3 mm to 12 mm. Stable cutting action: triangular metal tip design bites reliably and reduces wandering on contact, so you start holes accurately. Long-lasting material: solid carbide construction resists wear in hard materials for consistent performance over many cuts. Simple, rugged build: single-piece construction eliminates weak joints and keeps the bit straight and durable during use. What you get: a reliable tool for neat entry holes and accurate mounting points in brittle materials. Key benefits — why this helps you Cleaner results: carbide cutting and the triangular tip reduce chipping and cracking, giving better finish and less rework. Easier starts: reduced wandering means faster, more accurate placement of holes without having to score surfaces first. Less tool change: durable carbide and single-piece construction extend life so you spend less time replacing bits. Suitable applications Installing fittings or mounting hardware in glass shelves, tabletops or framed glass panels. Drilling entry holes in ceramic wall or floor tiles for screws, anchors and fixtures. Craft and hobby projects that require neat, repeatable holes in glass and ceramic components. Materials and performance Material: solid carbide for wear resistance in hard, brittle substrates. Designed for brittle surfaces: glass panels, ceramic tiles and porcelain surfaces. Construction: single-piece carbide body with a triangular metal tip profile for stable bite and reduced wandering. Usage notes Intended for creating precise holes in brittle materials where minimal chipping and accurate starts are required. Available in a size range from 3 mm to 12 mm; this listing is the 3 mm single-piece version. If you need reliable, repeatable holes in glass or ceramic with minimal chipping and stable starts, this carbide 3 mm drill bit provides precise cutting and long life.