Festool
Festool Granat Abrasive Disc 90mm 6 Hole Pack of 100
$85.00Unit price /UnavailableIn stock-
Festool
Festool Granat Abrasive Disc 90mm 6 Hole Pack of 50
From $55.00Unit price /UnavailableIn stock
Mastering Detail Work with 90mm Sanding Discs
90mm sanding discs are ideal for precision sanding tasks where control and finesse are paramount. Commonly used with detail or random orbital sanders, these compact discs are perfect for smoothing curved surfaces, edges, and tight spaces that larger abrasives can't reach. Their smaller size also allows for targeted material removal, making them a go-to for fine woodworking, cabinetry, furniture making, and restoration projects.
Available in a wide range of grits—from coarse 40–60 grit for aggressive stock removal to ultra-fine 400+ grit for polishing—90mm sanding discs provide flexibility across all stages of surface preparation. They often feature hook-and-loop (Velcro-style) backing, enabling fast disc changes and secure attachment during use. The compact design also minimises vibration, contributing to better finish quality and user comfort during extended sanding sessions.
Material choice matters as well. High-quality discs use durable abrasives like aluminium oxide or ceramic grain, which offer extended lifespan and consistent performance. Some models include anti-clog coatings that resist loading, especially useful when working with resinous timbers or painted surfaces. The disc's hole pattern, where applicable, also plays a role in dust extraction efficiency—key for keeping the workspace clean and improving abrasive effectiveness.
To get the best results, match your disc’s grit and construction to the task at hand. Use lower grits to shape or level, medium grits (80–180) for smoothing, and higher grits (240+) to prepare for finishing. Always work through the grits progressively to avoid swirl marks and ensure a uniform surface. For woodworkers who value precision, versatility, and efficiency, 90mm sanding discs are a workshop essential.
FAQs
What are 90mm sanding discs used for?
90mm sanding discs are used for fine detail sanding, edge work, and surface preparation on timber, especially in tight areas where larger sanders are impractical. They're commonly used with palm and detail sanders.
What type of sander do I need for 90mm discs?
You’ll need a compatible 90mm random orbital sander or detail sander that accepts hook-and-loop backed discs. Always check the disc size and attachment system before purchasing to ensure compatibility.
How do I choose the right grit?
Select a coarse grit (40–80) for removing material or shaping wood, medium grit (100–180) for general smoothing, and fine grit (240 and above) for preparing surfaces for finishing. Always sand progressively for best results.
Do 90mm sanding discs work with dust extraction systems?
Yes, many 90mm discs have perforated hole patterns designed to align with the sander’s dust extraction ports. This helps minimise airborne dust, improve visibility, and extend disc life by preventing clogging.
What materials are 90mm discs made from?
Most discs are made from durable abrasives like aluminium oxide, zirconia, or ceramic grain. These materials offer good heat resistance, consistent cut quality, and a longer usable life compared to cheaper alternatives.
How often should I change sanding discs?
Change discs when they become clogged, worn, or stop cutting efficiently. Using a dull or loaded disc can result in heat build-up, uneven sanding, and damage to the work surface.
Can 90mm sanding discs be used on other materials?
Yes, while primarily used for timber, 90mm discs can also be used on metal, plastics, and painted surfaces—provided the correct abrasive material and grit are chosen for the task.
Are all 90mm sanding discs interchangeable?
Not always. While the diameter may match, variations in hole pattern and backing type (hook-and-loop vs adhesive) can affect compatibility. Always check the specifications of both your sander and the discs.
What’s the benefit of anti-clog sanding discs?
Anti-clog discs resist loading from dust and resin, especially when working with softwoods or finishes. This helps maintain cutting efficiency and reduces the number of disc changes required.