Drill bit Dedra DED1576, diameter 1.5 cm, steel, for stone/terracotta/glass/ceramic, 1 pc

Dedra DED1576 is a single steel drill bit with a 1.5 cm diameter, engineered for drilling precise openings in hard materials such as stone, terracotta, glass and ceramic. The solid steel construction delivers rigidity and stability during drilling, helping to maintain hole shape and reduce deflection. Supplied as one piece, this drill bit is intended for tasks that require a larger-diameter hole in masonry and tile work.

Advantages

The steel body ensures durable performance and resistance to bending under load, while the larger 1.5 cm diameter enables efficient removal of material when creating sizable holes. The tip and geometry are designed to work on brittle substrates like glass and ceramic without excessive chipping when used correctly. Being a single-piece item simplifies inventory and selection for projects that need one larger drill bit rather than a multi-bit set.

Suitable for

• Drilling holes in natural stone and concrete tiles
• Creating openings in terracotta and similar fired-clay materials
• Drilling through glass for fixtures or conduits (with appropriate technique)
• Making holes in ceramic tiles for plumbing and mounting hardware

Key specifications

• Diameter: 1.5 cm
• Material: steel
• Compatible materials: stone, terracotta, glass, ceramic
• Quantity: 1 piece

How to use

Select a drill or hammer drill capable of accepting the bit shank and with appropriate speed control. Mark the drilling position and, for brittle surfaces such as glass or ceramic, use tape or a guide to reduce wandering. Start drilling at low speed with steady, moderate pressure and increase speed gradually only if the substrate and bit remain stable. For deep or prolonged drilling into stone and terracotta, periodically withdraw the bit to clear debris and avoid overheating. Use water cooling when drilling glass, ceramic or very hard stone to reduce heat and chipping.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves, dust mask) and secure the workpiece. Match drill speed and feed pressure to the material: lower speeds and light pressure for glass and ceramic, moderate speeds for terracotta and stone. Avoid excessive force to reduce the risk of breakage; when in doubt, practice on a scrap piece first.