6A2 flat recessed grinding wheels 200x20x5x29x51 P B2-01 50% AC4 D 107

6A2 Diamond Grinding Wheel – Flat Recessed Type | FEPA D107 (100/80 μm)

6A2 flat recessed diamond grinding wheel for controlled rough grinding of flat surfaces.
Designed for carbide inserts, cutting tools and technical glass.

Where it is actually used:

Used for flat surface grinding and insert sharpening with reduced grinding forces.
Typical applications include:

• Grinding on low-rigidity machines
• Sharpening of thin or vibration-sensitive tools
• Operations where thermal stability is critical

What it actually does:

Moderate material removal with smoother, more stable cutting behavior.
Less aggressive than 100% concentration, improving control and reducing vibration impact.

Grain size (D107 ≈ 100/80 μm):

• High stock removal with controlled cutting
• Typical Ra ~ 0.6–1.2 μm
• Prepares surface for D91 → M63 sequence

Concentration 50% means:

• Reduced grinding forces
• Open structure → improved chip evacuation
• Lower heat generation
• Smoother and more forgiving cutting
• Trade-off: reduced tool life and aggressiveness

In practice:

This is a low-load roughing wheel.
Used when machine rigidity is limited or vibration is present.
Prioritizes stability over maximum removal rate.

Specification:

• Type: 6A2 (flat recessed)
• Abrasive: Synthetic diamond (AC4)
• Grit: FEPA D107 ≈ 100/80 μm (ANSI 140/170)
• Concentration: 50%
• Body: P / A / S / Ap
  (Pressed / Aluminum / Steel / Aluplast)

Body options:

• Pressed: lighter weight, vibration damping, better surface finish
• Aluminum: lightweight with good rigidity
• Steel: maximum rigidity for heavy-duty grinding
• Aluplast: balanced weight and rigidity

Why 50% concentration:

• Lower cutting forces
• Improved process stability
• Reduced risk of burning

Use for:

• Carbide inserts
• Precision tools
• Technical glass
• Controlled rough grinding

Do not use for:

• Maximum productivity grinding
• Finishing operations
• Steel