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Coated vs Uncoated Bits

7/5/23       
C

Hi,

I wanted to see if anyone has ever run actual testing on coated vs uncoated router bit performance when processing particleboard?

I know many vendors push coated as lasting longer than uncoated but I've been questioning lately whether this is more of a sales/marketing push versus a justifiable cost/benefit.

Thank you.

7/5/23       #2: Coated vs Uncoated Bits ...
Dropout Member

Haven't run melamine for a few years but I did notice that some coatings are better than others.

Also noticed that uncoated tools wear at the tips first and coated wear at the top of the sheet.

Prefer cutting ply - we're over 2,000 sheets on my current 7/8 flute1/2 chipbreaker compression spiral.

7/5/23       #3: Coated vs Uncoated Bits ...
Karl E Brogger  Member

Website: http://www.sogncabinets.com

2000?

7/6/23       #4: Coated vs Uncoated Bits ...
Dropout Member

Yep, not a misprint.

KOMO, 18K RPM, 750 to 800 IPM, single pass, 3/4 construction grade plywood or 18mm baltic birch. 1510 sheets in on current 2500ish sheet job and bit was at least 2 months old prior to starting this job. Chip breaker profile makes a big difference.

To be fair these are furniture frame or concrete molding parts so edge finish isn't critical.

7/6/23       #5: Coated vs Uncoated Bits ...
BH Davis

I found coated HSS bits had an improved longevity over uncoated HSS bits. I used carbide in some instances but most of my cutting required using HSS.

Overall I'd say the coating resulted in improved bit life.

BH Davis

7/6/23       #6: Coated vs Uncoated Bits ...
Mike

I have always avoided coated bits because, what happens after a sharpening? Just curious if anyone knows....

7/7/23       #8: Coated vs Uncoated Bits ...
Dropout Member

Never done it, but FS tools has told me they sharpen inside the flute and that after the first sharpen the bit will cut more sheets than when new.

7/7/23       #9: Coated vs Uncoated Bits ...
jerry Member

they just revert to non coated bits

7/7/23       #10: Coated vs Uncoated Bits ...
Josh Koschak

Check out frost cnc tooling, his bits are outlasting all competitors.

7/7/23       #11: Coated vs Uncoated Bits ...
dylan bayliss

Website: https://www.cnc-tool.com/

We have found coated works for HPL and melamine and typically increases life of the tool up to 40%. We have access to most coated OEM bits. The DLC seems to have the most success. After sharpening the coating is typically removed. Its not worth the expense to recoat after sharpening.

Dylan Bayliss

https://www.cnc-tool.com/cnc-coated-router-bits.html#/


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