On Monday, July 21, 2014 8:13:23 PM UTC, rangerssuck wrote:
I need to make (or have made) a custom router bit. The groove I need to make is a truncated V 15/16" wide at the top, 3/8" wide at the bottom and 1/4" deep. The dimensions aren't super critical, but closer is better.



Thanks for the input.

Would you settle for a standard router bit that makes the groove?

I looked at the router bits that I have and found that I think is for trimming formica. It is too wide at the top as it is an inch wide. But you can reduce that to 15/16ths by setting the depth so the groove it cuts is 15/16 inch wide.

The bottom has a ball bearing which you need to remove. I eyeballed it at about 3/8 inch. Can go back down to the basement, remove the bearing and see what the actual width is at the bottom. The cutting edges may work well at the bottom. But you can use a 3/8 straight router bit first and then use the 45 degree bit. I think that will work to get what you want.

The router bits I have are from Harbor Freight, but the web site does not give good dimensions.

Could not find the router bit on ebay.

Dan