6A2 flat recessed grinding wheels 70x6x3x18x20 A B2-01 50% AC4 D 151

6A2 Diamond Grinding Wheel – Flat Recessed Type | FEPA D151 (150/125 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 under reduced load conditions at early stage.
Typical applications include:

• Initial grinding on low-rigidity machines
• Heavy reconditioning with vibration-sensitive setups
• Bulk material removal with limited spindle power

What it actually does:

Very high material removal with smoother and more stable cutting behavior.
Reduces grinding forces while maintaining effective stock removal.

Grain size (D151 ≈ 150/125 μm):

• Very high stock removal rate
• Typical Ra ~ 1.0–2.0 μm
• Prepares surface for D126 → D107 sequence

Concentration 50% means:

• Reduced grinding forces
• Open structure → improved chip evacuation
• Lower heat generation
• Smoother and more stable cutting
• Trade-off: reduced tool life vs 100%

In practice:

This is a low-load extreme roughing wheel.
Used when aggressive grinding is required but machine stability is limited.
Prioritizes control over maximum productivity.

Specification:

• Type: 6A2 (flat recessed)
• Abrasive: Synthetic diamond (AC4)
• Grit: FEPA D151 ≈ 150/125 μm (ANSI 100/120)
• 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 stability in difficult 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