Controlled Deburring, Bore Cleaning & Surface Finishing

A machined component can look clean on the outside while still carrying burrs inside a bore. A fabricated edge may need refining before assembly. Neither job necessarily calls for a grinding disc.

Union Abrasive Brushes offer a different approach to suitable cleaning, deburring & finishing. Their abrasive-loaded nylon filaments combine flexible brushing contact with material-removing action, making brush shape & abrasive grade important selection factors.

Industrial Shed's collection includes Union QGIW abrasive nylon wheel brushes for accessible external surfaces & Union GTS abrasive nylon tube brushes for compatible internal bores. The range covers selected 80, 100, 120 & 150-grit products, with different diameters & mounting arrangements.

For cup-shaped abrasive nylon accessories, compare Union | Cup Hex Brushes. For conventional metal-wire cleaning rather than abrasive nylon finishing, explore Union | Wheel Brushes.

Whether you're removing light machining burrs, refining fabricated edges or preparing a component for inspection, the best result starts with understanding where the brush needs to make contact & what finish the workpiece requires.

What Are Union Abrasive Brushes?

Union abrasive brushes are rotary cleaning & finishing accessories with abrasive particles incorporated into nylon filaments.

Unlike ordinary nylon cleaning brushes, abrasive nylon brushes are intended to produce abrasive action.

Unlike conventional steel wire brushes, they rely on abrasive-loaded polymer filaments rather than metal wire tips.

The collection contains two distinct working profiles.

Abrasive Nylon Wheel Brushes

The Union QGIW series uses a circular wheel profile.

Abrasive filaments contact the workpiece around the wheel's circumference, making these brushes relevant to suitable accessible edges, profiles & external surfaces.

The listed QGIW wheels use aluminium oxide abrasive nylon & quick-release hex-shank connections.

Abrasive Nylon Tube Brushes

The Union GTS series uses a cylindrical brush profile designed for suitable internal cleaning & finishing.

These brushes may help reach internal surfaces that a wheel brush cannot contact.

The listed GTS models use 120-grit abrasive nylon & 6mm shanks.

How Does Abrasive Nylon Work?

Abrasive particles are incorporated into flexible nylon filaments.

During brushing, the filaments contact the workpiece while the abrasive contributes to cleaning, deburring or surface refinement.

The result depends on more than grit.

Brush diameter, filament construction, tool speed, contact pressure, workpiece hardness & the required surface finish all influence performance.

Abrasive nylon is not automatically non-damaging. It can scratch coatings, remove material or affect component dimensions.

Why Choose Union Abrasive Brushes?

Choose the Working Shape

A wheel brush can reach suitable exposed edges & profiles.

A tube brush can contact compatible internal cylindrical surfaces.

The correct geometry often matters more than choosing the largest brush.

Match Abrasive Grade to the Task

The listed range includes several abrasive grades across its wheel & tube products.

Coarser options generally provide more active abrasive cutting, while finer options may be considered for lighter refinement.

Work Around Suitable Surface Features

Flexible filaments can accommodate certain irregularities, making abrasive nylon useful for selected contours & features.

That flexibility does not make the brush suitable for every delicate component.

Support Controlled Deburring

A correctly selected brush may help remove minor burrs where aggressive grinding would be unnecessary.

Critical tolerances must still be protected.

Select by Mounting System

The range includes quick-release hex-shank wheels & 6mm-shank tube brushes.

Tool compatibility must be checked for each model.

Common Applications

Light Machining Burr Removal

Abrasive nylon brushes may assist with reducing suitable small burrs around accessible machined features.

They should not replace a specified dimensional deburring process.

Internal Bore Conditioning

Correctly sized GTS tube brushes may help clean or refine suitable internal cylindrical surfaces.

Avoid critical precision bores unless the maintenance or manufacturing procedure permits abrasive contact.

Fabrication Edge Finishing

QGIW wheel brushes may be useful for compatible exposed edges, brackets & fabricated profiles.

Select the brush diameter according to the workpiece geometry.

Maintenance Cleaning

Abrasive brushing may help remove suitable surface residue from removable workshop components.

Identify the deposit before choosing the cleaning method.

Preparation Before Coating

Surface conditioning may form part of a coating-preparation process, but it does not automatically produce the specified cleanliness or surface profile.

For associated supplies, browse Paints, Finishes & Decorating Tools.

Finishing Before Assembly

Suitable abrasive brushing may help refine selected component edges before assembly.

The finished part must still meet the relevant dimensional & surface requirements.

Product Selection Guide

Wheel Brush or Tube Brush?

A wheel brush should not be forced into a bore.

A tube brush should not be used on an opening that cannot accommodate its diameter & operating method.

Compare Union QGIW Abrasive Nylon Wheel Brushes

These six products are listed in carded packaging.

Ordering caution: Confirm the QGIW-40 / 6144162 grit specification before purchase because its listing differs from the apparent reference pattern used for other 150-grit variants.

Compare Union GTS Abrasive Nylon Tube Brushes

These seven products are listed in bulk packaging.

Ordering caution: The GTS-56 listing states 156mm, which is inconsistent with the model sequence. Verify the manufacturer's actual brush diameter before publishing a corrected specification.

Understand 80, 100, 120 & 150 Grit

Abrasive grade numbers are useful, but they do not predict an exact finish across different brush constructions.

Trade tip: When surface preservation is important, assess the least aggressive suitable option first.

Choose Diameter According to Access

65mm wheels: May suit smaller accessible external features.

75mm wheels: Provide another balance of contact area & clearance.

100mm wheels: May offer greater coverage on suitable accessible workpieces, subject to machine compatibility.

GTS tube brushes: Must be selected according to the actual internal bore, not simply nominal pipe size.

An oversized internal brush may bind or damage the workpiece.

Understand Abrasive Nylon vs Wire Brushing

For heavier external wire-brushing tasks, compare Union | Cup Brushes.

For a different abrasive finishing method, see Union | Cleaning & Stripping Discs.

Check Tool Compatibility

Before mounting any abrasive brush:

► Confirm the exact shank connection
► Check the manufacturer's maximum permitted RPM
► Verify the tool is approved for the brush type & diameter
► Inspect the brush body & filaments
► Secure the workpiece
► Use the required guards & protective equipment

Do not assume a quick-release hex shank is suitable for every impact driver or that a 6mm shank is approved for every drill.

Match the Brush to the Material

Carbon steel: Consider the required cleaning action, surface condition & downstream process.

Stainless steel: Assess finish requirements & cross-contamination risks.

Aluminium: Take care with scratching, material removal & edge rounding.

Coated surfaces: Determine whether abrasion is permitted.

Precision-machined components: Follow the specified dimensional & surface-finish requirements.

For final polishing after suitable preparation, explore Union | Buffing Compounds.

Expert Tips

Define the Finish Before Choosing the Brush

Removing contamination, deburring & polishing are different tasks.

Start by identifying the required result rather than choosing an abrasive solely by grit.

Protect Critical Edges

Abrasive nylon can round edges or change dimensions.

Avoid uncontrolled brushing on critical machined features.

Test on a Representative Surface

Material hardness, coatings & previous processing can change how a brush behaves.

Test where practical before treating the full component.

Use Controlled Pressure

Excessive pressure can deform filaments, increase heat & accelerate wear.

Follow the manufacturer's recommended operating method.

Don't Oversize a Tube Brush

Measure the actual internal diameter.

A brush that is too large can become difficult to insert or withdraw.

Separate Brushes by Material

Avoid transferring carbon-steel contamination onto stainless components.

Keep suitable brushes dedicated to sensitive applications.

Inspect the Brush Before Use

Look for damaged filaments, deformation, insecure mounting or abnormal wear.

Replace unsuitable accessories.

Remove Abrasive Residue

Brushing may leave loosened particles on or inside the component.

Use an approved cleaning method before coating, inspection or assembly.

For related products, see Cleaning Chemicals & Solutions.

Control Dust & Debris

Abrasive brushing can release workpiece particles, coating residue & airborne dust.

Use appropriate extraction & Safety & Personal Protective Equipment.