Diamond Vacuum-Brazed Core Bit Dedra DED1592S12 M14 12 mm

Diamond vacuum-brazed core bit Dedra DED1592S12 M14 12 mm is a compact cutting accessory designed for precision hole-making in hard surfaces. The bit features a vacuum-brazed diamond edge bonded to a durable steel body with an M14 threaded shank, enabling secure attachment to angle grinders and compatible rotary tools. With a 12 mm cutting diameter, this core bit is intended for small-diameter drilling tasks in tile, ceramic, natural stone and similar dense materials where a long-lasting cutting edge and clean, accurate holes are required.

Advantages

The vacuum-brazed diamond edge delivers consistent cutting performance and extended service life compared with conventional abrasive bits. Designed for stable attachment via the M14 thread, the bit minimises wobble and allows controlled drilling at low to moderate speeds. Its compact 12 mm diameter provides access to confined areas and enables precise hole placement without excessive chipping when used with appropriate technique and coolant.

Suitable for

• Drilling small diameter holes in ceramic and porcelain tiles
• Creating precise openings in natural stone and engineered stone surfaces
• Cutting holes for fixtures and anchors in dense masonry tiles
• Use with angle grinders and rotary tools equipped with M14 thread

Key specifications

• Cutting diameter: 12 mm
• Bonding method: vacuum-brazed diamond edge
• Shank/thread type: M14 compatible threaded shank
• Construction: steel body with diamond-coated cutting crown
• Typical applications: tile, ceramic, natural stone, engineered stone

How to use

Secure the core bit into the tool spindle with the correct M14 thread connection and ensure the tool is switched off during fitting. Mark the drilling point, start at low speed to establish a secure seat, and then apply steady, light pressure while maintaining tool stability. For most hard ceramics and stone, intermittent drilling with light pressure and cooling (water or wetting) helps reduce heat and extend the life of the vacuum-brazed diamond edge. Avoid excessive side loads and high speeds that can damage the bit or workpiece.

Usage recommendations

Use water as a coolant where possible to limit overheating and prolong the diamond edge life. Begin drilling at low speed to avoid slipping on smooth surfaces, and consider a guide or pilot hole when extreme precision is required. Replace the bit if diamond wear causes a noticeable loss in cutting performance or increased chipping.