Diamond Core Drill Bits

Silver welded diamond core bits for stone drilling with water. Available in OD 6.5-25mm, crown or flat segments, and M14 or 5/8-11 thread. Durable, precise, and customizable for OEM orders. Fast delivery within 20-30 days.

Industrial-grade 35mm diamond core drill bit with silver welding for precise stone drilling. Features flat turbo segments for enhanced durability and efficiency on marble, granite, and sandstone. Custom sizes available. Ideal for countertop and fabrication applications.

Premium 30mm diamond drill bit with turbo segments for fast, precise granite drilling. Silver welded for durability, water-cooled use. Custom sizes and OEM available. 15+ years export experience.

Silver welded crown segment diamond core drill bits for stone drilling. Ideal for marble, granite, and countertop fabrication. With water application, custom OEM options, and strict QC. Durable and efficient.

Premium silver welded diamond core bit for granite, marble, and stone. Fast drilling speed, extended life, and water-cooled operation. Custom sizes available. Durable for industrial use with 83mm total length.

Professional 12mm diamond core drill bit for marble, granite, and sandstone. Features 8mm crown segment, wet drilling, and durable metal bond. Available in 45mm or 55mm working lengths with 3/8" or M14 thread. Ideal for industrial stone fabrication.

Professional 40mm diamond core drill bit for granite and marble. Features 8mm segment height, wet drilling design, and durable bond for long life. Available with 1/2 shaft or 5/8-11 thread. Ideal for countertop and stone fabrication. OEM and custom options supported.

Vacuum brazed diamond core bits for fast, long-life drilling in porcelain, tile, and glass. Available in 5-100mm diameters with hex, M14, or 5/8-11 connectors. Suitable for wet or dry use, offering superior durability over electroplated bits.

High-performance diamond core bits with metal bond segments for drilling marble, granite, concrete, reinforced concrete, and tile. Available in sintered, silver brazed, and laser welded options. Outer diameter from 6.5mm to 350mm. Custom sizes and threads upon request.

High efficiency 150mm diamond core bit for concrete and brick. Features 450mm working length, 7mm segment height, and wet drilling design. Durable metal matrix for optimal milling. Custom connections and OEM options available.

Laser welded 102mm diamond core bit for wet or dry concrete drilling. 450mm working length with 1 1/4 UNC thread. Durable segments for reinforced concrete, asphalt, and brick. Custom sizes and connections available. OEM accepted.

Laser welded 50mm diamond core bit for reinforced concrete, brick, and masonry. 450mm working length with 7mm segments. Supports wet drilling and custom connections. OEM and custom orders accepted.

Premium 110mm diamond core bit for granite and marble. Features 8mm segment height, M14 or 5/8-11 thread, and durable metal bond for industrial use. OEM and custom logo options available.

Durable diamond core bit with 8mm segment height for wet drilling on sandstone, limestone, marble, and granite. Features M14 or 5/8-11 thread, 103mm total length. Ideal for countertop and stone fabrication. OEM and custom logo options available.

Professional diamond core bit for granite, marble, and stone. 10mm diameter with crown segment, M14 or 5/8-11 thread. Durable for dry/wet drilling. OEM and custom logo available. 15 years experience.

Professional 70mm diamond core drill bit with 12.7mm shank and 50mm drilling depth. Features normal segment type design for granite, marble, and natural stone applications. Enhanced durability for industrial use with 8mm diamond segments. Accepts OEM orders and custom branding with flexible shipping options.

Professional 70mm diamond core bit designed for drilling marble, granite, and other stone materials. Features M14 thread compatibility, 103mm total length, and 8mm high diamond segments. Ideal for countertop fabrication and stone working applications with custom sizing available upon request.

Professional 38mm diamond tip drill bits engineered for stone fabrication applications. Features 8mm diamond segments, 50mm drilling depth, and turbo/normal segment options. Ideal for marble, granite, and limestone with industrial durability and OEM customization available. 15+ years manufacturing expertise ensures consistent quality performance.

Professional 32mm diamond core drill bits designed for stone materials including marble and granite. Features 8mm ring segments, 50mm drilling depth, and durable construction for industrial use. Available in normal and turbo segment options with OEM capabilities and comprehensive quality control.

Professional 20mm diamond core drill bit designed for marble, granite, and stone applications. Features 8mm diamond segments, crown-type design, and 50mm drilling depth. GB and SGS certified for quality assurance, with OEM acceptance and industrial-grade construction for business use. Ideal for countertop fabrication and stone working projects.