Diamond Core Drill Bits

High-speed steel 4241 step drill bits set with titanium coating for enhanced durability. Hex shank design ensures secure grip. Includes center punch for precise starting. Ideal for metal drilling. Compatible with most power drills.

Titanium coated HSS 4241 step drill bits offer superior heat, corrosion, and rust resistance. Automatic center punch design for precise starts. Ideal for drilling metal, aluminum, wood, and sheet metal. Durable and versatile for home and light industrial use.

Vacuum brazed diamond core bit set for dry or wet use on tile, porcelain, and ceramic. Features hex shaft for battery drills, less chipping, and long lifetime. Custom logo and size lasering available. Ideal for 45+ holes in hard porcelain.

Vacuum brazed diamond core bit with OD35mm, 62mm length, and M14 thread. Ideal for porcelain, ceramic, and tile. Superior durability over electroplated bits, delivering high precision with minimal chipping. Drills 30+ holes per bit. SGS certified.

High-performance 30mm diamond core bit with M14 thread for precise drilling in porcelain and ceramic tiles. Vacuum brazed technology ensures long life, smooth edges, and minimal chipping. Ideal for professional tile installation.

High-precision vacuum brazed diamond core bit for porcelain and ceramic tiles. 35mm size with M14 thread. Aggressive cutting, smooth edges, minimal chipping. Lasts longer than electroplated bits, drilling 30+ holes per bit. Ideal for professional tile installation.

Vacuum brazed diamond core drill bits set for dry drilling on tile, porcelain, and ceramic. 5 sizes from 6mm to 14mm. High efficiency, less chipping, and durable steel body with M14 or hex shank. Ideal for angle grinders.

Laser welded turbo core drill bit for fast, precise drilling in reinforced concrete. 82mm diameter, M16 connection, 4500RPM. Features vacuum brazed diamond segments for extended life and low heat. Suitable for wet or dry use. Custom options available.

Vacuum brazed diamond core bits for dry or wet use on tile, ceramic, granite, and marble. Sizes 20-68mm with M14 thread. Low heat, less chipping, fast drilling, and long lifetime. Custom options available.

Set of 4 vacuum brazed diamond core bits (20-68mm) for dry drilling porcelain, ceramic, granite, and marble. Zero vibration design ensures clean holes with minimal chipping. Long lifespan, high efficiency, and OEM options available.

4-piece vacuum brazed diamond core drill bits set for dry use on porcelain, ceramic, and stone. Superior to electroplated bits for longer life and smoother edges. M14 thread, 35-68mm diameters. Ideal for precision drilling with minimal chipping.

Vacuum brazed diamond core bits set for chip-free drilling in tile, porcelain, and ceramic. Features wax cooling for longer life, less chipping, and stable performance. Custom sizes available. Durable and efficient for dry use.

High-efficiency dry diamond core bit for granite, porcelain, and ceramic. Vacuum brazed technology ensures durability and fast cutting. Hex shank for battery drills. Custom sizes and laser logos available. 1500-3000 RPM recommended.

Laser welded turbo segment core bit for fast dry drilling in brick, block, and concrete. Features 2 top slots for easy dust removal. Suitable for wet or dry use with hand drills. OEM/ODM available.

Premium 82mm diamond core drill bit with M16 thread and turbo segment for fast dry drilling in concrete, brick, and block. Laser welded for durability, low heat, and extended life. Ideal for reinforced concrete. Custom options available.

Vacuum brazed diamond router bits for precise stone cutting. M14 or 5/8-11 connection, 20mm diameter, 50mm working length. Reduces cracking risk in tiles and granite. Custom options available. High quality, fast delivery.

High-efficiency vacuum brazed diamond core drill bits for dry drilling ceramic, porcelain, granite, and marble. M14 thread, 68mm outer diameter, 62mm length. Fast, clean holes with minimal chipping. Long lifespan, OEM available, 15 years export experience.

Vacuum brazed diamond core bits for tile, stone, and porcelain. Dry or wet use, less chipping, fast drilling. Sizes from 20mm to 68mm with M14 or 5/8-11 thread. Long lifetime, smooth finish.

High efficiency vacuum brazed diamond core drill bits for fast dry drilling on tile, ceramic, and porcelain. Durable, long life, with M14 thread. Sizes from OD20mm to OD68mm. Custom packaging available. 100% QC inspected.

High efficiency vacuum brazed diamond core bits for fast dry drilling of tile, ceramic, and porcelain. Available in 20mm to 68mm diameters with 60mm working length. Long service life, smooth openings, and custom thread options. Ideal for B2B industrial use.