1A1 straight grinding wheels 63x3x10x20 P B2-01 100% ACH M 20

1A1 Diamond Grinding Wheel – FEPA M20 (20/14 μm) | B2-01 Bond

Straight diamond wheel (1A1) for semi-finish and fine grinding.
Designed for carbide, ceramics and other hard brittle materials.

What it actually does:

Semi-finishing with noticeable stock removal and controlled surface quality.
More aggressive than M16, used to prepare surface before fine finishing.

Grain size (M20 ≈ 20/14 μm):

Fine grit at the boundary of semi-finish and finish.

• Removes material faster than M16/M10
• Typical Ra ~ 0.06–0.15 μm
• Good balance between productivity and surface quality

More tolerant to feed, but still not for rough grinding.

Bond (B2-01):

• Self-sharpening
• Reduced heat generation
• Stable cutting behavior
• Designed for semi-finish and finish operations

In practice:

This is a pre-finish wheel.
Used after rough grinding to prepare geometry before M16 or M10.
Works best after D46 → D25 sequence.

Specification:

• Type: 1A1 (straight)
• Abrasive: Synthetic diamond (АСН)
• Grit: FEPA M20 ≈ 20/14 μm
• Bond: B2-01 (resin-based)
• Concentration: 100%
• Body: P (pressed composite)
  (Aluminum or Steel on request)

Concentration 100%:

• High cutting stability
• Consistent performance
• Longer wheel life
• Note: may load if overloaded

Body type (P):

• Lightweight construction
• Good vibration damping
• Improves surface consistency
• Limit: less rigid than steel

Use for:

• Carbide semi-finishing
• Geometry preparation
• Pre-finishing before M16/M10
• Ceramics / glass

Do not use for:

• Steel
• Heavy rough grinding
• Aggressive unstable feeds