Drill bit Dedra DED1574 — 1 cm diameter, steel, for stone terracotta glass ceramic

Dedra DED1574 is a single steel drill bit with a 1 cm diameter engineered for drilling hard brittle materials such as stone, terracotta, glass and ceramic. The bit's steel construction provides dimensional stability and straight drilling performance when used with manual or power drills. Supplied as one piece, this drill bit is intended for tasks that require a precise, relatively large hole in tile, masonry, glass panes or ceramic fixtures.

Advantages

The steel body of the Dedra DED1574 offers rigidity that reduces bending and wobble during drilling, helping to maintain an even hole profile in brittle substrates. Its 1 cm diameter is suitable for larger anchor holes or through-holes in tiles and thin masonry. Being a single-piece design, it is easy to mount in standard drill chucks and compatible with both low- and medium-speed drilling operations. The bit's geometry and material selection aim to balance durability and control when working on glass, ceramic and terracotta.

Suitable for

• Drilling mounting or anchor holes in ceramic tiles and sanitary fixtures
• Creating holes in glass panes for fittings or cable passages (with appropriate technique)
• Masonry and terracotta where a clean 10 mm hole is required
• Repair work that requires replacing or enlarging existing holes in brittle materials

Key specifications

• Material: steel shank and cutting body
• Nominal diameter: 10 mm (1 cm)
• Supplied quantity: 1 piece
• Compatible tools: manual drills and power drills with standard chucks
• Intended materials: stone, terracotta, glass, ceramic

How to use

Secure the Dedra DED1574 in the drill chuck and ensure the bit is tightly clamped. When drilling glass or ceramic, start at low speed and apply light, consistent pressure to avoid cracking; consider using masking tape at the entry point to reduce slipping. For terracotta and stone, use steady moderate speed and avoid excessive pressure that can overheat the bit or damage the material. Periodically withdraw the bit to clear debris and, when appropriate, use water or a coolant to reduce heat buildup. Wear safety goggles and gloves and follow the drill manufacturer's recommendations for speed and feed.

Usage recommendations

For optimal results, match drill speed and pressure to the material: low speed and gentle pressure for glass and ceramic, moderate speed for terracotta and stone. Use coolant when drilling extended holes and secure workpieces to prevent movement. Inspect the bit before use and replace it if signs of wear or chipping appear.