The Kreg Tool KCS-SHIMS Setup and Spacer Shims are a seven-piece shim set made for cabinet installation, drawer front alignment, door spacing, and general setup work. This is a spacer shim set designed for creating repeatable gaps and reveals during installation and adjustment. Model Number: KCS-SHIMS. If you install cabinet doors, set drawer fronts, or need dependable spacing during repairs and remodels, this set gives you a cleaner, more repeatable way to do it.

What matters here is consistency. Instead of grabbing random scraps, paint sticks, or loose wedges and hoping the reveal comes out even, these shims give you known thicknesses that match common cabinet spacing jobs. The set includes two three thirty-seconds inch inset shims, two one eighth inch shims, two one quarter inch shims, and one three quarter inch shim. That range makes it useful for everything from inset work to standard reveal spacing to larger setup gaps.

The built-in rare-earth magnets are the feature that makes this set more than just seven pieces of plastic. Because the shims stack together magnetically, you can combine sizes quickly and keep them aligned while positioning doors and drawer fronts. That saves time when you need a custom gap and keeps the stack from shifting around while you are holding a part in place with your other hand.

Kreg builds these from durable plastic polymer, which is the right call for this kind of shop and jobsite accessory. They are tough enough for repeated setup work, they will not splinter like improvised wood spacers, and they are easy to keep in a drawer, pouch, or cabinet installation kit. For anyone doing punch work, renovation, or cabinet adjustments after installation, that durability matters because these are the kind of setup tools you reach for over and over.

This set also works well with the Kreg Drawer Front Mounting Tool, which gives it a clear place in the Kreg cabinet installation system. If you already use Kreg cabinet and drawer jigs, these shims make setup faster and more controlled. Even if you do not, the spacing sizes are practical enough that the set still earns its keep as a general-purpose cabinet and trim accessory.

The best fit for this product is cabinet installers, finish carpenters, remodelers, shop builders, and serious DIY users who want repeatable results when fitting drawers and doors. If your work depends on clean reveals and straight alignment, these setup and spacer shims are one of those small accessories that can prevent a lot of fiddling and rework.

Kreg Tool KCS-SHIMS Setup and Spacer Shims solve the little alignment headaches that slow cabinet work down

This is a simple shop accessory, but it earns its spot fast if you care about clean drawer and door spacing.

• Who it's for: Cabinet installers, finish carpenters, remodelers, and DIY users who want repeatable reveals without improvising spacer blocks.
• Why it stands out: The magnetic stacking is the real advantage here because it makes custom spacing quick, neat, and easy to manage with one hand.
• Worth knowing: This is not a flashy tool, but it is exactly the kind of low-cost setup accessory that helps work look more professional.

• What is this product used for? It is used to create consistent spacing and reveals when installing or adjusting drawers, doors, and similar cabinet parts.
• Are the shims stackable? Yes. Each shim has rare-earth magnets so the pieces can stack together in different thickness combinations.
• What sizes are included? The set includes two 3/32 in. inset shims, two 1/8 in. shims, two 1/4 in. shims, and one 3/4 in. shim.
• Does it work with other Kreg cabinet tools? Yes. It is specifically listed as compatible with the Kreg Drawer Front Mounting Tool.