Cabinet door rail question

[Jeff2413]

Can anyone tell me there best technique for preventing tear out when running cabinet door material?  Not on the copes.  I have zero problem with this part.  It's running the profile on the stiles and rails.  I keep getting minor tear out on both the front and back side.  This happens using soft maple, oak, poplar or whatever.  I've tried making multiple small passes, one slower pass,etc.  The bits were new when I got them and have only made maybe 50 or so doors.  Could it just be a little dull?  Don't wanna waste my $ on another set unless needed. 

I'm also seriously considering the 3 hp shaper from Grizzly for my door parts and use the router table (Benchdog) for something else. Thoughts?

 

[tjbnwi]

Have you ever use them on MDF?

What brand are the bits?

They can be sharpened.

Tom

 

[Jeff2413]

Nothing but hardwoods on the stile and rail bits. Mdf on the raised panel bits. I honestly can't remember what brand they are. 

 

[tjbnwi]

What color are they?

Tom

 

[roblg3]

Have you examined them for pitch build up? That's the tastes way to burn the wood and also allows tear out b

 

[Billedis]

Sommerfeld has a new patented rail and stile bit that prevents tear-out.

 

[rvieceli]

Try cleaning them first. Can make a huge difference in performance.

CMT makes a cleaner

http://www.amazon.com/CMT-Formula-Blade-Cleaner-bottle/dp/B000BJJY5C/ref=sr_1_1?ie=UTF8&qid=1447851956&sr=8-1&keywords=cmt+bit+cleaner

Or you can use one of the citrus cleaners you can find locally.

Ron