Machined Aluminium Disc for Disc Grinder

Motor Shaft:
In stock! Usually ships within 24 hours.
Pickup available at 6 Geebung street Polo Flat NSW

Usually ready in 24 hours

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Our 225mm diameter discs are precision CNC machined from billet 6061 Aluminum, ensuring a perfectly flat work face. The Aluminum is lightweight and provides exceptional heat dissipation and rigidity. A 10ᵒ relief on the disc edge makes sanding into tight areas and grinding crisp corners a breeze. The disc is sized so that standard 230x280mm sandpaper / abrasive sheets can be used. We recommend using 3M feathering adhesive or kraft spray adhesive to attach sheet to disc, then trimming the excess.

Discs are available to suit either 19mm (1-1.5hp) or 24mm (2hp) keyed motor shaft. We recommend 4 pole motors for discs due to more suitable RPM for disc grinding. Our discs should be run at an absolute maximum rpm 2880rpm. 



Product Specifications

• 6061 Aluminium
• Bevelled edge for greater access

Included in package

• 225mm Machined 6061 Aluminium Disc to suit either 19mm or 24mm shaft

Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the following business day when received before 12:00 p.m. AEST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

Precision CNC Machined

Our discs are CNC machined from billet 6061 aluminium; designed with an uninterrupted disc face, 10ᵒ relief and accurate to <50micron rotating variance

Australian Made

All 84 Engineering discs are cut and machined from aluminium billet bar material right in our workshop in the Snowy Mountains

Industry Standard Size

225mm diameter disc accepts a standard sheet of abrasive


We take pride in our quality and service
Dmitriy Popov

DP Custom Knives

Have been a long time customer of 84 Engineering and every product I have purchased has been manufactured incredibly well with very high attention to detail. Customer service has also always been top notch. You will definitely be well looked after here.

Jordy Kopetko

Deathrig Fabrication

Amazing Aussie made products - used daily in my workshop. Quality second to none

Dan Murray

Cafe Racer Garage

I have been using 84 Engineering belt grinders for many years, it's truly the one tool that gets the most use in my garage building motorcycles, It's one of those tools that you wonder how you ever did without! I highly recommend anyone working with steel have one! Dan - Cafe Race Garage -YouTube

Riley Burns

Knife Maker

Our 84 Engineering machine is the best in our workshop and the best we've ever owned. Their service is second to none.

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