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Weha 5 in Flap Diamond Cup Wheel — Grit 400 for Stone Surface Prep

The Weha 5 in Flap Diamond Cup Wheel grit 400 combines diamond cup-wheel cutting power with a flap-disc pattern, producing a more consistent finish than a rigid cup wheel alone. Grit 400 places it in the medium-fine prep range — ideal for surfacing and pre-polish work on granite, marble, and engineered stone.

Features

  • 5 in (125 mm) diameter flap-style diamond cup wheel
  • Grit 400 — medium-fine surface prep
  • Flap pattern delivers a more consistent finish than rigid cup wheels
  • For granite, marble, and engineered stone surface prep and pre-polish
  • Compatible with standard 5 in angle grinders (verify thread/spec)
Property Detail
Brand Weha
Part Number 7658
Diameter 5 in (125 mm)
Grit 400
Type Flap Diamond Cup Wheel
Application Stone surface prep and pre-polish
Unit Weight 2.6 lb (1.2 kg)
Compatible Materials Granite, marble, engineered stone
  1. Verify the wheel diameter and arbor thread match your grinder before mounting.
  2. Run wet whenever possible to control dust and extend wheel life.
  3. Use light, even pressure with the cup face flat against the stone — avoid edge-loading the wheel.
  4. Step up through finer grits as needed to reach the target polish level.
  • Wear ANSI Z87 eye protection and a dust-rated respirator.
  • Inspect the tool/accessory before each use; remove from service if cracks, deformation, or excessive wear are visible.
  • Follow OSHA and local site safety procedures at all times.
  • Use wet whenever the grinder allows; dust control mandatory.
  • Inspect for flap delamination before each shift.