Find an accessory that fits your rotary tool

Start with the tool's exact model and the holder that is installed. A collet clamps a stated shank size. An adjustable chuck accepts a range of sizes on supported tools. A mandrel is a holder for an accessory such as a wheel or a felt pad, and it has its own shank. When a wheel needs a mandrel, there are two fits to check. The mandrel shank must fit the tool, and the wheel must fit the mandrel.

Measure or look up the part of the shank that goes into the holder. The working end can have a different diameter. A narrow engraving head therefore tells you very little about collet size. Compare the manufacturer's figures in the same units and check the tool manual for approved holders. A label that rounds to the same fractional inch can still refer to a different metric size.

If you already have a Dremel EZ402 mandrel, look for the compatible interface on the exact replacement wheel. The Dremel accessory chart lists multiple mandrel types and identifies which accessories use them. For a different example, Proxxon lists specific tool exceptions for the 28941 chuck. Check that tool list even when your bit's shaft falls within the chuck's diameter range.

Can two wheels with the same diameter use different holders?

Yes. Wheel diameter describes the working edge. Check the center opening or coupling separately and match it to the specified mandrel. An offer photo that shows the rim clearly may still hide the part that determines fit.

Manufacturer references

• Dremel accessory chart
• Dremel EZ402
• Proxxon holders and model exceptions

Shop by operation

• Sanding Bands, Drums and Flapwheels10 accessories
• Cut-Off Wheels and Rotary Cutting Bits12 accessories
• Grinding Stones and Mounted Abrasives11 accessories
• Carving Cutters and Engraving Points14 accessories
• Polishing Tips, Felt Wheels and Cleaning Brushes13 accessories
• Precision Rotary Drill Bits and Sets8 accessories
• Mandrels, Collets, Chucks and Accessory Kits13 accessories