Penn State Industries Video on Negative Rake Carbide

[egnald]

I just ran across a great little video that was put out by Penn State Industries that shows a comparison between a gouge and a negative rake carbide on a polyester blank. Link to Video - Dave

 

[jocat54]

Don't do facbook

 

[Twist&Click]

YouTube.

 

[SabertoothBunny]

This PSI carbide tip is just another knock off of the Easy Wood Tools negative rake carbide. The quality is not the same and it will have a shorter use life that the EWT carbides. Just go with the EWT carbide, it is an actual American made product and the cutting tips stay sharper noticeably longer.

 

[wood-of-1kind]

This PSI carbide tip is just another knock off of the Easy Wood Tools negative rake carbide. The quality is not the same and it will have a shorter use life that the EWT carbides. Just go with the EWT carbide, it is an actual American made product and the cutting tips stay sharper noticeably longer.

I very much doubt that the EWT carbide insert is American made. As someone who purchased thousands of inserts…the finest quality carbide inserts were manufactured in Germany (IMO). Most inserts are manufactured in China today and depending on the source of origin are good quality. But heck yah, if it makes you feel better then go ahead and purchase the overpriced EWT inserts.

 

[randyrls]

To join the thread; Negative rake is over-rated and I am not a fan. The only thing that matters is the tool presentation of the tool to the work and the force-vectors on the work piece. I use flat-top carbide bits and present them below center. I hone them on a diamond credit card sized hone. I have bits that are many years old. I had to throw a bit away not because it wasn't sharp, but because it was too thin! I had honed it down to the point where the screw bottomed out in the hole and couldn't tighten it down.

Present the tool horizontal and above center and you will get pits galore. Present the tool below center and use gentle pressure and get endless ribbons. The further below center you go the more aggressive the cut and the more force is applied to the blank. You are pushing the tool tip into the blank and not prying the blank cutter edge outward.

 

[ed4copies]

The current owners of Easy Wood Tools have been producing carbide tips for many years, prior to buying EWT. Yes, their manufacturing is in the USA.

Just clarifying the facts-you can view it any way you like.