6A2 flat recessed grinding wheels 125x5x10x22x32 A B2-01 100% ACH M 63

6A2 Diamond Grinding Wheel – Flat Recessed Type | FEPA M63 (63/50 μm)

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

Where it is actually used:

Used for precision sharpening of flat surfaces and inserts at early transition stage after rough grinding.
Typical applications include:

• Face grinding of carbide inserts after D-series
• Preparation of flat tool surfaces before finer micron stages
• Grinding of technical glass and brittle materials

The recessed design provides clearance and stable access to flat surfaces.

What it actually does:

Productive material removal with basic surface refinement.
Removes deep scratches from D107 / D91 and prepares geometry for further finishing.

Grain size (M63 ≈ 63/50 μm):

• High stock removal with improved control vs coarse grits
• Typical Ra ~ 0.30–0.60 μm
• Transition step before M40 → M25 sequence

In practice:

This is a pre-transition wheel.
Used after rough grinding (D91 / D107) and before M40.
Focus is removing rough marks and stabilizing the surface.

Specification:

• Type: 6A2 (flat recessed)
• Abrasive: Synthetic diamond (АСН)
• Grit: FEPA M63 ≈ 63/50 μm (ANSI ~230–270)
• Concentration: 100%
• Body: P / A / S / Ap
  (Pressed / Aluminum / Steel / Aluplast)

Body options:

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

Why this shape:

• Stable flat surface grinding
• Clearance for inserts and small parts
• Reduced interference during sharpening

Use for:

• Carbide inserts
• Precision tools
• Technical glass
• Pre-transition grinding

Do not use for:

• Fine finishing (use M40 → M10)
• Polishing
• Steel