6A2 flat recessed grinding wheels 200x20x5x29x51 P B2-01 50% AC4 D 213

6A2 Diamond Grinding Wheel – Flat Recessed Type | FEPA D213 (212/180 μm)

6A2 flat recessed diamond grinding wheel for controlled extreme 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 at the earliest stage with reduced grinding forces.
Typical applications include:

• Initial grinding on low-rigidity machines
• Heavy reconditioning of worn tools under unstable conditions
• Bulk material removal with limited spindle power

What it actually does:

Maximum material removal with smoother and more stable cutting behavior.
Significantly reduces load compared to higher concentrations.

Grain size (D213 ≈ 212/180 μm):

• Extreme stock removal rate (maximum)
• Typical Ra ~ 2.0–4.0 μm
• Prepares surface for D181 → D151 sequence

Concentration 50% means:

• Minimum grinding forces for this grit range
• Highly open structure → excellent chip evacuation
• Lower heat generation
• Smoother, more forgiving cutting
• Trade-off: reduced tool life vs 100%

In practice:

This is a low-load extreme roughing wheel.
Used when maximum material removal is required but machine stability is limited.
Prioritizes control and process stability.

Specification:

• Type: 6A2 (flat recessed)
• Abrasive: Synthetic diamond (AC4)
• Grit: FEPA D213 ≈ 212/180 μm (ANSI 70/80)
• 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:

• Minimum cutting forces
• Improved stability in weak setups
• Reduced thermal load

Use for:

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

Do not use for:

• Maximum productivity grinding
• Finishing operations
• Steel