Metal Bond Diamond Micro Reamers

Metal Bond Diamond Micro Reamers are engineered for ultra-precision hole sizing, polishing, and micro-finishing in the hardest and most brittle materials used in optics, semiconductors, ceramics, aerospace components, instrumentation, and advanced technical manufacturing. Built using a dense, long-wear metal bond matrix that securely retains diamond particles, these micro reamers deliver exceptional dimensional accuracy, tool life, and surface integrity—even in micron-level tolerances.

Designed for CNC machining centers, micro-drilling stations, spindle-driven mandrels, and high-accuracy manual setups, Braemar micro reamers provide clean, round, straight holes with minimal chipping, tight size control, and smooth internal walls. Each tool is manufactured to exacting engineering standards to ensure consistent performance in demanding production environments.

Key Performance Features

1. Long-Life Metal Bond Construction

High-strength metal bond securely locks in diamond grit

Exceptional wear resistance for extended tool life

Maintains geometry even under continuous production loads

Ideal for high-precision micro-finishing applications

2. Precision Hole Sizing & Micro-Finishing

Produces extremely round and dimensionally stable bores

Smooths internal walls after drilling or EDM

Excellent for optical apertures, ferrule polishing, sapphire/quartz micro-holes, and ceramic components

3. Clean Cutting in Hard & Brittle Materials

Engineered for materials where edge quality is critical:

Sapphire

Fused silica

Quartz

Ceramics (alumina, zirconia, machinable ceramic)

Glass and technical glasses

Carbide

Silicon carbide (SiC)

Ferrites and composites

4. Ultra-Fine Diamond Finishes Available

Grit sizes from coarse to micron grades

Achieves extremely tight size tolerances

Final polishing options for high-optical-quality apertures

5. Customizable Geometry

Braemar USA offers complete customization:

Diameter sizes (micro-diameter down to sub-millimeter)

Overall length and shank sizes

Diamond length and exposure

Bond hardness and diamond concentration

Coolant channels or special coatings

Applications

Braemar metal bond diamond micro reamers are widely used in:

Optical manufacturing – lens apertures, precision optical bores

Semiconductor processing – micro-holes, wafer components

Ceramic & sapphire machining – tight-tolerance finishing

Medical & instrumentation – micro-channels, precision ports

Aerospace & defense – miniature components requiring high accuracy

Research labs & advanced engineering – prototype and specialty materials

Why Choose Braemar USA?

Braemar USA delivers industry-leading diamond tool engineering with:

Strict geometric tolerances

Controlled diamond exposure and bond formulation

Long, predictable tool life

Fast production lead times

U.S.-based support for technical applications

When precision, surface quality, and reliability matter, Braemar USA Metal Bond Diamond Micro Reamers provide unmatched performance across advanced material machining.

Call (480) 966-9311 or Add to Quote for pricing.