The Kreg KRTBP150 Trim Router Edge Guide (Model Number KRTBP150) is a trim router edge guide accessory that turns a handheld trim router into a steadier, more repeatable routing setup. This is a router accessory designed for guiding a trim router along the edge of a workpiece for accurate, parallel cuts.

The main win is control. Instead of balancing a compact router base with your fingertips, you get an oversized, stable base and an integrated handle that lets you steer with confidence and keep the guide registered to the edge. That matters when you are routing dados and grooves that need to stay the same distance from an edge, or when you are doing decorative fluting and inlay work where a small wander shows up fast.

It is also built to work without bearing guided bits. If you have ever had bearing marks on a finished edge, or you want to use a straight bit that does not have a bearing, an edge guide like this keeps the bit tracking where you set it. The goal is simple: straighter passes, fewer do-overs, and less sanding to hide mistakes.

Circle cutting is built in. The base has pin holes that let you cut circles from 3-1/2 in to 15 in diameter, which covers a lot of common shop needs like small round tops, speaker cutouts, and decorative details.

The base is made from impact-resistant polymer and it is clear for better visibility at the bit and layout lines. That is a practical advantage when you are lining up to a mark, following a template edge, or checking where your cut starts and stops.

Compatibility is broad: it is designed to work with most major trim routers, including the Kreg 20V Ionic Drive 1/4 in Trim Router. If you run more than one trim router in the shop, this is the kind of accessory that can move with you instead of being locked to one brand.

A simple upgrade that makes a trim router behave

If your trim router feels squirrelly on edge work, the Kreg KRTBP150 Trim Router Edge Guide gives you the stability and reference you need for cleaner, more repeatable cuts.

• Who it's for: Woodworkers and serious DIYers routing grooves, dados, fluting, inlays, and small circles without a router table.
• Why it stands out: Clear oversized base plus an integrated handle, and it guides cuts without requiring bearing guided bits.
• Worth knowing: Circle cutting is built in, but the maximum circle size here tops out at 15 inches diameter.

• Do I need bearing guided router bits to use this edge guide? No. It is designed to guide router bits along the edge of the workpiece without the need for bearings.
• What circle sizes can I cut? The built-in circle cutting feature supports circles from 3-1/2 in to 15 in diameter.
• Will it work with the Kreg 20V Ionic Drive trim router? Yes. It is listed as compatible, along with most major trim routers.