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1/2 in. x 1 in. Carbide Flush Trimming Router Bit

  • Use on hand-held or table-mounted routers
  • Cuts all composition materials, plywood, hardwood & softwood
  • TiCo Hi-Density Carbide for flawless finishes and longer life
  • See More Details

Frequently Bought Together


Product Overview

The Diablo 1/2 in. x 1 in. Carbide Flush Trimming Router Bit was crafted from durable carbide and titanium for longevity. Ideal for laminates and template work, the bit features a kickback-reducing design for a safe, controlled cut. It also features tri-metal brazing for impact resistance.
  • Requires a minimum chuck size of a 1/4 in.
  • Delivers a clean, precise cut ideal for laminates and template work
  • High-density carbide body with titanium construction facilitates long-term use
  • Reduces kickback
  • Tri-metal brazing offers impact resistance



Cut Diameter
1/2 in
Product Height (in.)
Product Length (in.)
Product Width (in.)
2 in
Shank Diameter (in.)


Bit Material
Number of Flutes
Number of Pieces
Router/planer type
Shank Style
Tools Product Type
Power Tool

Questions & Answers


Will this cut self adhesive vinyl flooring? Making a coutner out of thin peel and stick flooring and i may have some overhang.

Asked by Sean June 10, 2020

Yes make sure you adjust the depth and run the router counter clockwise

The bearing seems to go out on these while I can get still more usage out of the blades. Are repl...

Asked by Sign October 3, 2019

I don't know if replacement bearings are available but you can take a bearing off another bit and use it.

Hi, will this work on fiberglass? thank you

Asked by ben July 12, 2019

I wouldn't try since there is a lot of particles when the bit hit a board.

Is this the correct bit to use that will provide nice smooth flushed ends to join two 1/2"thick C...

Asked by MJP August 22, 2018

I used it to cut a 12 foot long, 1/2" wide path through T1-11 outdoor siding plywood 5/8" thick. I was trimming siding back to new studs for an enlarged opening in a storage shed. I should have used a circular saw, but I know I would have butchered the studs, so went this route, and it worked perfectly.

Is the roller the same dimension as the cutting bit?

Asked by pat September 6, 2017


Can i use this to cut plexiglass??

Asked by Tony February 22, 2017

Hi Tony, Thank you for your question. This bit will cut Plexiglas, however you will want to be aware of the feed rate and speed of the bit so you don't melt the material. Best to make a practice cut on a sample piece first. Hope this helps.

What is the bearing specifications (ID and OD) for this bit if I need to replace it?

Asked by Bryan January 27, 2017

I haven't measured it as I do not own a micrometer for exact details. but with 1/2" shank and being carbide tipped I would just replace it down the road after it goes bad if ever. I have never had a bearing freeze up on a router bit.

Will this bit cut 1/8 thick aluminum sheet

Asked by Joe January 13, 2017

This is a wood routing bit - I would not recommend using this on any metal.

Would this bit or another 1/4" shaft bit be best for template trimming a 3/4" thick oak board.

Asked by RLV June 8, 2016

Mine lasted for 3 feet of 3/4 plywood before the bearing failed.

Should this be used with a Rigid compact router?

Asked by rbwaite June 2, 2016

If it has enough power

1/2 in. x 1 in. Carbide Flush Trimming Router Bit - page 2

Customer Reviews

  • 4.4
    out of 175 reviews
  • 90% recommend this product
Filter by:
Showing 1-10 of 175 reviews
Bad bearing
Bit worked great out of the box, but after less than 200' of use, the bearing got stuck. Did not realize this as the router started to wobble and leave an uneven cut - thought it was simply the guide surface until I started smelling burning wood. looked like the bearing started rapidly spinning with the bit and the friction had been causing it to jump, until it got hot enough to burn into the wood.
by Nick
Bearing on bit fell out 12 feet into my cut....
Bit worked okay... had a little bit of tear put but ill leave that to user error. However, the bearing fell off 13 feet into my cut around the perimeter of an oak table and dug in... this is unacceptable. Luckily im able to remove the piece but still should never of happened in the first place. Tighten down that tiny bolt before use apparently the factory doesn’t.
by Rob
Do not buy this router bit, bearing fell apart after about 3 minutes of use on 3/4 plywood trimmi...
Do not buy this router bit, bearing fell apart after about 3 minutes of use on 3/4 plywood trimming about 1/8" of plywood on new cornhole board.
by DanV
1 person found this helpful
Great buy ! Used it to flush 1/4 inch maple...
Great buy ! Used it to flush 1/4 inch maple strips laminated to veneer.
by Jose
1 person found this helpful
This flush trim router bit worked better than expected. I was able to trim through 1/2" thick ply...
This flush trim router bit worked better than expected. I was able to trim through 1/2" thick plywood with ease and the result was a clean edge. Overall great product and I do not have any doubts regarding the long term durability.
by MBO
Built this display with this router bit.
This is the best router bit on the market today. I use router bits all the time. They last the longest with the sharpest cutting.
by 1234
This flush cut router bit was high quality - cut through red oak like butter
Building a bedroom set - the legs I built required a flush frame to attach the legs in line to the sides of the cabinets. Since I already built the face frames with a 1/4 in. overhang I needed to trim them flush. This bit was PERFECT.
by Alphonse
5 people found this helpful
The bit wore out very quickly. I only got halfway...
The bit wore out very quickly. I only got halfway through the job I was doing. For the money it didn’t last very long. I ended up returning it.
by Mark
Response from DiabloProductExpertApr 6, 2021
Hi Mark! Thank you for taking time to share this. We sincerely want you to have the best experience possible, so please give us a call at 800-334-4107 or email customerservice@diablotools.com. We can help!
Fantastic bit
I used this bit to do a lot of cutting in red oak. It performed as well at the end of the project as it did at the start. It is a fantastic bit.
by James
Sharp and bearing lines up with blades.
Sharp and bearing lines up with blades.
by Pgcle
Showing 1-10 of 175 reviews