Drill bit Dedra DED1575 — Ø 12 mm, steel, for stone/terracotta/glass/ceramic, 1 pc

Dedra DED1575 is a single 12 mm steel drill bit designed for controlled drilling in stone, terracotta, glass and ceramic. The steel construction gives the bit the rigidity required to penetrate hard or brittle materials when used with appropriate speeds and careful feed. Supplied as one piece, this drill bit is intended for use in handheld drills and drill presses for renovation, tiling and masonry tasks where a compact, durable cutting tool is needed.

Advantages

The 12 mm diameter provides a balance between hole size and structural strength for common installation and repair tasks. Steel construction ensures stability and resistance to bending during operation in masonry and brittle surfaces. A single-piece supply simplifies tool selection for jobs that require occasional drilling of tile, glass or terracotta without needing a full set of bits.

Suitable for

• Drilling holes in ceramic tiles for anchors and fixtures
• Creating openings in terracotta and natural stone for installations
• Perforating glass for careful, low-speed applications
• General renovation and masonry tasks requiring a 12 mm hole

Key specifications

• Diameter: 12 mm
• Base material: steel
• Intended materials: stone, terracotta, glass, ceramic
• Quantity in pack: 1 piece
• Suitable tools: handheld electric drills and drill presses (recommended careful feed and controlled speed)

How to use

Mark the drilling location and secure the workpiece to prevent movement. Select a low to moderate drilling speed and apply steady, light pressure to avoid cracking brittle materials; do not force the bit. For glass and ceramic, start with a shallow pilot point and maintain cooling by intermittent pauses or by using water as a coolant where appropriate. When drilling stone or terracotta, use progressive feed and clear debris from the hole periodically to maintain cutting efficiency.

Usage recommendations

Use protective eyewear and gloves, clamp the workpiece, and start at low speed. For fragile materials such as glass and ceramic, consider masking the surface to reduce chipping and use water cooling or intermittent drilling to control heat and prevent cracking.