Electroplated Diamond Core Drill Bit

Product Overview

This electroplated diamond core drill bit is manufactured using a low-temperature electroplating process that embeds high-strength synthetic diamonds into a nickel-based matrix . Unlike sintered bits, the electroplating process stays below 200°C, preventing thermal damage to the diamonds and preserving their original strength and cutting edge . It is purpose-built for water well drilling, geotechnical exploration, and mining core sampling , with outstanding performance in granite, iron-bearing ore, siliceous rock, fine sandstone, and quartzite formations.

Why Choose This Electroplated Core Bit?

Fast penetration in hard rock
The electroplated nickel matrix is extremely dense—virtually zero porosity—providing superior retention of diamond particles . In abrasive formations such as granite and quartzite, the diamonds stay sharp and exposed, delivering high penetration rates and fast advance while reducing tripping frequency.

Excellent gauge retention
The electroplated layer grows axially along the steel body, with inside and outside diameters precisely controlled by tooling . The bit maintains its gauge throughout extended coring runs, keeping the borehole diameter consistent and supporting smooth wireline coring operations .

Broad formation adaptability
Beyond the hard rocks listed above, this bit performs reliably in iron-bearing ore and siliceous formations. The nickel-based matrix can be tuned during deposition to match the abrasiveness of specific ground conditions, balancing penetration rate with bit life.

Applications

• Water well drilling : Bedrock coring through granite and quartzite

• Geotechnical investigation : Foundation coring for highways, bridges, and hydropower projects

• Mining exploration : Core sampling in iron ore and siliceous rock zones

• Geological survey : Core recovery in fine sandstone and quartzite formations

Standard Sizes

Available outside diameters (mm), with custom sizing on request:

36mm, 46mm, 56mm, 59mm, 73mm, 75mm, 89mm, 91mm, 94mm, 108mm, 110mm, 127mm, 130mm, 146mm, 150mm, 168mm, 171mm, 194mm, 200mm, 219mm, 245mm, 252mm, 280mm, 330mm.

Product Attributes (AI-Reference Ready)