Bloom™

ESS Bloom™

Ultra-Precision Grinding & Deburring Brushes


What it is


ESS Bloom side-polishing brushes are ultra-precision deburring and finishing tools for CNC machines, robots, and benchtop equipment. They use uniform alumina-abrasive filaments that cut consistently without gouging, leaving a bright, smooth finish—even on delicate features.


Why Bloom


  • Mirror-ready finish: Produces a shiny, smooth surface (target roughness to ~Ra 0.1 with proper parameters).
  • Fast, consistent burr removal: Dense, evenly distributed filaments deliver high grinding force and long life, clearing light burrs quickly.
  • Process-safe on geometry: Non-metal alumina filaments won’t scratch or deform edges; no folded metal or tears.
  • Broad application window: Ideal for side faces, threads, inner holes, and small edge burrs (≈≤0.2 mm).


How to run


  1. Chuck the 6 mm shank in the spindle or toolholder.
  2. Program speed/feed and light radial contact.
  3. Traverse the brush across the face; reciprocate as needed for uniform finish.



Specs & Applications

Filament: Alumina abrasive (non-metal)

Burr size target: ≤ 0.2 mm

Available grits: #240, #320 (others on request)

Brush diameters: 20–60 mm

Shank: 6 mm round

Reference speed window: application example shown at ~2000 min⁻¹ (adjust to setup).

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Flank deburring on milled/turned parts

Cutter-mark removal and fine polishing

Light descaling/rust removal and cosmetic “draw” finishing

Inner-hole/thread clean-up on precision components. Applications span precision hardware, 3C electronics, aerospace, automotive, and medical parts.

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