Uploaded March 2025 | Updated September 2026, 10 hours ago
Router flush trim bits are like straight bits with a beanie—a bearing on top. Their purpose is in the name: They let you copy one smooth surface onto another with a precise cut.
Because they can get a surface as flat as if it had been pushed across a jointer, it’s very temping to take large cuts with them. But that leads to tear-out, rough edges, and can even damage your router.
The trick for clean cuts—especially when removing a lot of material—is to start with a light climb cut. But this should only be done when you're holding the router, and never in a table. Move with the feed to trim close, then finish by running it against the stock.
The biggest downside to regular flush trim bits is that these bits dull quickly. If you do a lot of flush cutting and use your router in lieu of a jointer, a spiral flush trim bit is a better upgrade. These cut cleaner, last longer, and use four-sided carbide inserts--basically like buying four long-lasting router bits in one. But because of their size and power, they should only be used in a router table...these things are beasts.
Link to the bit → bit.ly/3MXh9bq
I don't make any money off of the bit. They sent me one, I like it. I will be doing a review later.
Got a tip, send me an email (and get credited)! → mail@makethingswithrob.com
Check out my other channel! → @makethingswithrob
Become a patron! → patreon.com/makethings ←
Huge thank you to my patrons that keep this thing going!
*MAKER TEAM*
Michelle B
Keith Current
William L McNally
Rich Lightfoot
Tutor the Barbarian
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Nukebert
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Aaron Knows DIY
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David B.
Make Things
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Router flush trim bits are like straight bits with a beanie—a bearing on top. Their purpose is in the name: They let you copy one smooth surface onto another with a precise cut.
Because they can get a surface as flat as if it had been pushed across a jointer, it’s very temping to take large cuts with them. But that leads to tear-out, rough edges, and can even damage your router.
The trick for clean cuts—especially when removing a lot of material—is to start with a light climb cut. But this should only be done when you're holding the router, and never in a table. Move with the feed to trim close, then finish by running it against the stock.
The biggest downside to regular flush trim bits is that these bits dull quickly. If you do a lot of flush cutting and use your router in lieu of a jointer, a spiral flush trim bit is a better upgrade. These cut cleaner, last longer, and use four-sided carbide inserts--basically like buying four long-lasting router bits in one. But because of their size and power, they should only be used in a router table...these things are beasts.
Link to the bit → bit.ly/3MXh9bq
I don't make any money off of the bit. They sent me one, I like it. I will be doing a review later.
Got a tip, send me an email (and get credited)! → mail@makethingswithrob.com
Check out my other channel! → @makethingswithrob
Become a patron! → patreon.com/makethings ←
Huge thank you to my patrons that keep this thing going!
*MAKER TEAM*
Michelle B
Keith Current
William L McNally
Rich Lightfoot
Tutor the Barbarian
Aubrey G.
Nukebert
Sam W.
Aaron Knows DIY
G. Salazar
David B.
Make Things
#MakeThings #mtbitesize
