Drill chuck with 7 diamond dry drill bits, 5/6/8/10/12/14/16 mm dry drill bits for tiles, diamond hole opener bits for ceramic, glass, porcelain, ceramic tiles, Mar

[Diamond Core Bit] The diamond dry drill bit is made of high-quality electrolytic gold-plated steel grains, offering high-temperature fire resistance, hardness, sharpness, and durability. The diamond dry drill bit is pre-filled with cutting adhesive, eliminating the need for additional cooling time (unlike wet drilling). The high-quality material processing allows for faster drilling speeds and a longer lifespan. [High-Quality Material] The gold-plated diamond tile drill bit is made of high-quality gold-plated steel, providing wear resistance, durability, and a long service life. The diamond dry drill bit is a practical tool, offering high hardness and sharpness. [Scientific Design] The scientific chip-eliminating design makes the dry tile drill bit more stable without creating dust and debris. The diamond drill bit's shank adopts a circular design widely used in hand drills and angle grinders. [Multi-purpose] This hole opener for diamond drill bits comes in 7 different sizes: 5/6/8/10/12/14/16 mm, to meet your various needs. Suitable for all ceramic tiles, marble, granite, microcrystalline stone, quartz stone, coarse ceramic tiles, ceramics, ordinary glass, etc. Quantity shipped: 7 pieces. Color: Blue. Size as shown.