Sander Pad Compatibility Guide — Sizes, Hole Patterns & Brand Fitting

Fitting the wrong sanding pad to your orbital sander is the fastest way to waste money, waste abrasive, and get poor surface finish. The wrong pad can slip under load, clog with dust, overheat the backing plate, or simply refuse to stick. Sander pad compatibility is determined by three factors: backing type, pad size, and hole pattern. Mismatched any one of these and the disc won’t fit properly or won’t perform correctly.

This guide covers the full compatibility landscape across the main UK brands: Festool, Bosch, Makita, and DeWalt. If you use any of these sanders, you’ll find your pad type and what’s compatible with your machine. We’ll also show you which brands can share pads across systems and which are locked into proprietary ecosystems.

Quick Reference: Sander Pad Compatibility at a Glance

The Three Compatibility Factors

Sander pad compatibility depends on three independent measurements. Get all three right, and the pad will fit and work perfectly. Get one wrong, and you’ll have problems.

1. Backing Type: Hook-and-Loop vs PSA

Hook-and-loop (Velcro-style) is the dominant system in the UK. The backing has tiny hooks that grip adhesive loops on the sanding disc. It’s reusable, durable, and affordable — most orbital sanders use this system. PSA (pressure-sensitive adhesive) is a sticky backing that bonds the disc permanently. Most professionals avoid PSA for orbital sanders because once a disc is stuck, it’s stuck for life; removing it often damages the backing plate.

Mixing the two is impossible. A hook-and-loop pad won’t work with a PSA disc, and vice versa. Know your sander’s backing type before buying pads.

For more detail on the pros and cons of each system, read our full guide: Hook-and-Loop vs PSA Sanding Discs.

2. Pad Size: 125mm vs 150mm

Pad size determines the contact area and coverage speed. The two main sizes in the UK market are 125mm (orbit sanders and many orbital sanders) and 150mm (larger orbital sanders and deck sanders). A 125mm pad is roughly 123cm² of sanding surface; a 150mm pad is roughly 177cm². You cannot fit a 150mm disc on a 125mm sander — the overhang will cause imbalance and the machine will be unsafe to operate.

Always check your sander’s manual for the correct pad diameter. It’s usually printed on the machine itself.

See our full guide: 125mm vs 150mm Sander Pads.

3. Hole Pattern: Dust Extraction Alignment

Sanding discs have holes cut into them to enable dust extraction. The backing plate has corresponding holes that align with your sander’s dust collection ports. If the holes don’t match, dust doesn’t get pulled through efficiently — you’ll get recirculation, clogging, and a slower, messier job.

Common patterns are 8-hole (Makita, DeWalt, Bosch 125mm), 6-hole or multi-hole (Bosch 150mm) and Festool Jetstream. We’ll break down each system below.

For technical details on hole patterns: Sander Pad Hole Pattern Guide.

Brand-by-Brand Compatibility Summary

Festool: Proprietary System, No Cross-Compatibility

Festool’s ETS 125 uses Jetstream and the ETS 150 uses MULTI-JETSTREAM 2, both with StickFix. Festool says Granat abrasives are matched to Festool pads and sanders. This is by design — Festool integrates dust extraction, finishing quality, and pad design as a system. If you own a Festool sander, you will buy Festool pads. This limits your options but guarantees performance.

Bosch: Mixed System, Limited Cross-Compatibility

Bosch’s UK random orbit sanders are the PEX (DIY) and GEX (Pro) ranges. 125mm Bosch pads have 8 holes; 150mm discs have 6 holes or a multi-hole pattern. Bosch is moderately compatible with third-party hook-and-loop discs for 125mm (other brands make compatible pads). Bosch says its multi-hole pad takes discs with different hole patterns.

Makita: discs shared with DeWalt 125mm sanders

Makita random orbit sanders (BO5030, BO5031, BO5041, DBO180) take 125mm 8-hole discs. DeWalt 125mm sanders also take 8-hole hook-and-loop discs, but backing pads are brand-specific. This is the most affordable and flexible option for UK tradespeople.

DeWalt: discs shared with Makita 125mm sanders

DeWalt’s DWE6423 and DCW210 also use 125mm 8-hole hook-and-loop discs. DeWalt pads are DeWalt parts (DWE64233 fits the DWE6423). This cross-compatibility is why these three brands dominate the affordable UK market — pads are commoditised and competition drives prices down.

Cross-Brand Compatibility Matrix

Choosing the Right Sander Pad for Your Machine

Here’s how to identify your sander and find the correct pad:

Step 1: Check Your Sander Model

Look on the machine body or in your manual for the model number. Common examples:

• Makita: BO5030, BO5031, BO5041, DBO180
• DeWalt: DWE6423, DCW210
• Bosch: PEX 220 A, PEX 300 AE, GEX 34-150
• Festool: ETS 125, ETS 150, ROTEX RO 90

Step 2: Note Your Backing Plate Type

Look at the backing plate. Count the holes (often 6, 8 or 9, or a multi-hole pattern) and note the diameter. The backing plate will also feel either fuzzy (hook-and-loop) or slightly sticky (PSA). Never mix these up.

Step 3: Cross-Reference This Guide

Use the compatibility matrix above to find your brand and match the pad size, backing type, and hole pattern. If you’re unsure, your sander’s manual will specify the exact pad part number.

Step 4: Buy the Correct Pad

Once you’ve identified your type, you have options:

• OEM pads (brand-specific) are reliable and always fit perfectly but are the most expensive.
• Compatible third-party pads (for Makita, DeWalt, Bosch) are 20–40% cheaper and work just as well.
• Festool pads are your only option if you own a Festool sander.

For bulk pricing on compatible pads: Browse sanding pads on Amazon.

Common Compatibility Problems and Solutions

Problem: Pad keeps lifting under load → You’re likely using a worn backing plate or a PSA disc on a hook-and-loop plate. Replace the backing plate if the hook layer is flattened, or switch to the correct disc type.

Problem: Dust isn’t being extracted properly → Check hole alignment. Mismatched holes reduce extraction. If you’ve changed disc brands, ensure the new disc uses the same hole pattern.

Problem: Disc overheats and scorches wood → Wrong grit for your application, or hook-and-loop backing is degraded (replace it). Overheating also happens if dust extraction is blocked — clear the ports.

Problem: Can’t get the disc off the backing plate → You’ve likely stuck a PSA disc on a hook-and-loop plate (or vice versa) by mistake. Use a plastic scraper to gently lift the disc edge and peel it off. Never force it; you’ll damage the backing.

Related Guides on This Site

For deeper dives into specific topics, see:

• Hook-and-Loop vs PSA Sanding Discs — Detailed comparison of backing types
• 125mm vs 150mm Sander Pads — Size guide with coverage data
• Sander Pad Hole Pattern Guide — All hole patterns explained
• Best Sander Pads for Wood, Metal and Plaster — Material and grit selection
• Angle Grinder Disc Compatibility Guide — Similar compatibility rules for grinding discs
• Saw Blade Compatibility Guide — Disc fitting for circular and reciprocating saws

Watch: Video Guide

Frequently Asked Questions

Can I use Festool discs on a Makita sander?

No. Festool uses a proprietary Jetstream hole pattern and backing system that is unique to Festool machines. Festool discs will not fit correctly on any other brand’s sander, and attempting to force one on risks damaging both the disc and your backing plate.

Are DeWalt and Makita pads really interchangeable?

Discs yes, pads no. Both take 125mm 8-hole discs.

What’s the difference between OEM and third-party sanding pads?

OEM (original equipment manufacturer) pads are made by the sander brand or a licensed supplier and are engineered to exact specifications. Third-party pads are made by independent abrasive companies to the same dimensional standard but may use slightly different adhesive or hook density. In practice, performance is very similar; the main difference is price. Third-party pads are usually 20–40% cheaper.

How do I know if my backing plate is worn out?

Run your hand gently over a clean backing plate. A healthy hook-and-loop plate feels fuzzy and grips lightly when pressed. A worn plate feels flat and slippery — it won’t hold a disc firmly. If discs are slipping or lifting frequently, the backing plate is likely worn and should be replaced (usually £15–40 depending on the brand).

Can I fit a 150mm disc on my 125mm sander?

No. A 150mm disc overhangs a 125mm pad by about 12.5mm all round, causing imbalance. At operating speed (5,000+ rpm), this overhang can cause the disc to strike the sander body, your workpiece, or your hands. Always use the disc size specified for your machine.

Why do some Bosch sanders use multi-hole pads?

Bosch’s multi-hole pad is designed to improve dust extraction and takes several hole patterns. The trade-off is reduced disc availability — fewer third-party manufacturers make multi-hole discs. If you use a Bosch with multi-hole backing, you’re more limited in disc options compared to a standard 8-hole machine.