WEN 230327A mixed accessory kit
WEN 230327A includes multiple abrasive formats, seven mandrels and three collets in the manufacturer case list.

How to choose
Compare the mix of mounts if you want to work across several operations. Use the maker’s contents list to identify replacements you will need after the first kit.
Compatibility and limits
327-piece case · seven mandrels and three collets in WEN’s list
Questions before buying
What is worth checking beyond the difference in piece count?
Compare the mandrels and collet sizes you actually need. The 327 case only adds value over a smaller WEN kit if its mix covers more of your planned work.