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I have been trying to replicate a frame for a grill off of a speaker I am refurbishing. However, I have not been able to find an exact match for the roundover used on the original grill. I had 3/8" and 1/2" bits on hand, it was bigger than those, so I ordered an CMT 838-990-11, 3/4" and it is a bit too big. I went over to the local big box store and held up bits to my profile, tried the Bosch 5/8" and another one that was bigger, but none of them were exact.
What am I missing here, did the OEM use a non-standard bit or are there more than one type of each incremental 1/8" size? i.e. is there different profiles that are still the same size, such as 1/2" or 3/4"? I see that they list a rise/run and radius, so could very well be, but how would I know what my job calls for?
I think the 3/4" bit would work, I could just make the old and new grill the same using the new bit. However, I would like to learn how to measure and know exactly which bit I need for a match...your thoughts please?
Gavin
What am I missing here, did the OEM use a non-standard bit or are there more than one type of each incremental 1/8" size? i.e. is there different profiles that are still the same size, such as 1/2" or 3/4"? I see that they list a rise/run and radius, so could very well be, but how would I know what my job calls for?
I think the 3/4" bit would work, I could just make the old and new grill the same using the new bit. However, I would like to learn how to measure and know exactly which bit I need for a match...your thoughts please?
Gavin
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