The Festool 497514 KA-UG-R-L Extensions for the Kapex, Metric is a left-and-right extension set for the Festool KAPEX miter saw support system. This is a miter saw extension set designed for stock support, measuring, and repeat cutting on a KAPEX jobsite station. Model number 497514. If you already run a KAPEX and UG underframe, this set gives you the longer support and built-in measuring setup that makes finish work faster and more controlled.

What matters here is not just added length, but usable support. This set expands from 58-1/4 inches (1480 mm) to 94-1/2 inches (2400 mm), so long trim, casing, molding, and board stock stay supported instead of tipping or flexing off the stand. The integrated flip stop is there for repeat cuts, which is a real time-saver when you're batching out pieces and need them to match without constantly rechecking your tape.

Festool builds these as folding right and left extensions with sturdy metal construction, not as a light add-on that feels like an afterthought. The adjustable legs help stabilize the support arms and keep the work height practical on uneven jobsite conditions. That is the difference between a setup that looks good in the shop and one that actually works when you're trimming out a house or moving room to room.

The built-in metric measuring scale is a key detail for anyone who wants a cleaner, more integrated miter saw station workflow. Instead of juggling loose stops and separate measuring accessories, you get a telescopic slide-out scale built into the extension system. For repeatable finish cuts, that means less setup time and fewer chances to bump something out of position.

Compatibility is straightforward. This extension set is made for the Festool KAPEX KS 120 when used with the UG-KAPEX KS 120 underframe. It attaches tool-free to the KAPEX UG stand, which is sold separately. One important note: these UG extensions cannot be used with the older KAPEX crown stops 494369 that attach to the saw. Festool's newer crown stops 203356 are the compatible option for use with the UG extensions.

Who should buy this? Trim carpenters, finish carpenters, remodelers, cabinet installers, and serious shop users who already own a KAPEX setup and want a more complete portable miter station. If you are just looking for a generic saw stand accessory, this is probably more specialized than you need. If you depend on accurate length stops and stable support for finish work, this is the right add-on because it turns the saw station into a much more efficient cutting platform.

Festool 497514 KA-UG-R-L Extensions for the Kapex, Metric makes a KAPEX station way more useful

This is the add-on that makes a KAPEX setup feel complete when you're cutting long finish stock and need repeatable results.

• Who it's for: KAPEX owners doing trim, molding, cabinet, and finish carpentry work who want better stock support and faster repeat cuts.
• Why it stands out: You get left and right support arms, tool-free setup, an integrated metric scale, and a flip stop in one purpose-built system.
• Worth knowing: This is not a universal stand accessory. It is built around the Festool KAPEX UG setup, and the stand is sold separately.

• What saw does this extension set fit? It is designed for the Festool KAPEX KS 120 and is used with the UG-KAPEX KS 120 underframe or KAPEX UG stand.
• How much support length does it provide? The system expands from 58-1/4 inches to 94-1/2 inches, with a maximum measuring length of 95 inches.
• Does it use inches or metric on the scale? This version includes a metric scale in millimeters.
• Can it be used with older KAPEX crown stops? No. It cannot be used with crown stops 494369. Festool crown stops 203356 are the compatible option noted for use with these UG extensions.