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What Bench Grinder Accessories are Available?

Tools that come with bench grinders.

Many accessories are on the market to help you tackle a wide range of grinding, linishing and polishing tasks. These include:

Taper spindles

 

Polishing mops

 

Polishing bars

Wheel bore reducing sets

 

Wheel dressers

 

Spare wheel cutters

Taper Spindles

Taper spindles come in both right handed and left handed spindles.

A taper spindle, also known for obvious reasons as a false nose, lets you convert your bench grinder into a polisher by replacing one of the wheels with a mop attachment.

 

The spindles come in various sizes, and you can get left- or right-handed versions to use on either side of the machine.

Polishing Mops

Different types of polishing mops available on the market.

Several different types of polishing mop are available:

 

Calico (stitched or unstitched)

 

Sisal

 

Satin

 

Calico and sisal mops are used together with bars of polishing compound for different levels of finish – see the section Polishing Bars below for details.

Stitched Calico Mops

These mops are made from rough cotton, and are the most widely used type. The material has been sewn into spirals, giving it a hardness which makes it ideal for first stage buffing and polishing tasks.

 

Stitched calico mops should be rubbed with either brown or grey polishing compound, depending on the type of metal being treated.

Unstitched Calico Mops

Unstitched calico mop.

Unstitched, also called loose, calico mops are softer than ones that have been stitched, so can mould themselves to the shape of the workpiece and reach into small crevices. This makes them ideal for use on delicate or intricate items. They should be used with pink or blue polishing compound.

Sisal Mops

Sisal mop.

Made from a tough natural fibre, sisal mops are harder than calico versions and give a fast cutting and buffing action. They are particularly good at removing scratches and grinding marks, and should be used with grey polishing compound.

Satin Mops

Three different sized satin polishing mops.

Satin mops are made of nylon fibre mixed with abrasive grains. As the name suggests, they are suitable for sanding and cleaning metal to give a satin-like finish. The mops come in coarse, medium and fine grades, and are suitable for removing scratches, burrs, rust and other blemishes from all types of metal. They do not require polishing compound.

Polishing Bars

Polishing bars are used to smooth edges.

Bars of polishing compound comprise a hard wax substance with added abrasive powders which vary in composition, size and quantity to suit different purposes.

 

When you hold the polishing bar against the grinding wheel, friction melts the wax which then spreads itself in a thin layer over the wheel to provide an abrasive surface.

Different polishing bar specifications are determined by using different colours.

There are many different grades of polishing bar, but the ones most commonly used with mops on bench grinders are:

 

Grey – for steel and stainless steel at first polishing stage

 

Brown – for brass, aluminium, copper and plastics at first polishing stage

 

Blue – for brass, copper and aluminium at final glossing stage

 

Pink – for chrome plated items needing a high gloss finish

Top tips for using an angelr grinder from wonkee donkee.

For the most even results and to avoid cross-contamination, use a separate mop for each grade of compound.

 

Write the type of polishing bar used on each mop with a felt tip pen so you don’t mix them up, and store the mops in separate plastic bags when they’re not in use.

Wheel Bore Reducing Sets

These comprise a selection of synthetic rubber bushes which fit inside the bore of grinding and honing wheels to allow you to use them with different sizes and makes of bench grinder. 

Wheel Dressers

Grinding wheel dressers are used to smoothen the belt surface.

Wheel dressers are essential for keeping your grinding and honing wheels in good condition.

 

By drawing the dresser across the wheel, you can flatten its surface and smooth away any deposits that have built up. You can get diamond-tipped dressers, or ones with a toothed wheel.

Spare Wheel Cutters

Spare wheels can be replaced instead of buying a whole new tool.

If you have a wheel dresser with a star-shaped cutting wheel, you can simply replace the cutter when it goes blunt without having to go out and buy a whole new tool.

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