Flat Bottom Tooling

[The Cathedral]

We have many special products where we use a custom version of Harvey Tool's flat bottom counterbore. These tools are flippin' awesome and are extremely well designed. The only problem is they require over 3.5 weeks lead time to make and are not what even a rich guy would call cheap. I was wondering if anyone had used tools like these from a different manufacturer and if so, who?

 

Also, do any of you have a good source for flat-bottom HSS twist drills? I see Guhring and YG advertise it, but I can find no literature or part numbers on it. I'm hoping for some off-the-shelf stuff. Normally we grind our own but we need repeatability and quality for a new project.

[robk]

Extremely happy with the performance of Harvey's flat bottom endmills as well. Use them in a variety of high temp alloys with very good results.

Internal Tool has their version as well. Not as many choices as Harvey though.

http://internaltool.com/products/mill/59/n-c-counterbore

 

We do use flat bottom drills in here as well but only carbide.

http://www.kennametal.com/en/products/20478624/556249/3924453/7824529.html

[cincy k]

Look at Nachi for flat bottom drills. Aqua Drill EX Flat.

http://www.nachiamerica.com/c-1/Cutting-Tools/Drills/

From a few I've talked to that use them they are the bees knees in the flat bottom world.

[The Cathedral]

Extremely happy with the performance of Harvey's flat bottom endmills as well. Use them in a variety of high temp alloys with very good results.

Internal Tool has their version as well. Not as many choices as Harvey though.

http://internaltool.com/products/mill/59/n-c-counterbore

 

We do use flat bottom drills in here as well but only carbide.

http://www.kennametal.com/en/products/20478624/556249/3924453/7824529.html

 

Thanks. I sent an RFQ to Internal so we'll see how competitive they are. We've never used they're tools before. Do you have a lot of experience with them? Not just the cbore, but other tools?

 

I was looking at those Kennametals yesterday but we definitely need HSS.

[The Cathedral]

Look at Nachi for flat bottom drills. Aqua Drill EX Flat.

http://www.nachiamerica.com/c-1/Cutting-Tools/Drills/

From a few I've talked to that use them they are the bees knees in the flat bottom world.

 

Cool, thanks. That's what I'm looking for. I hope they have them in stock since I can't find them in any catalogs. I sent a request for more information.

[robk]

Thanks. I sent an RFQ to Internal so we'll see how competitive they are. We've never used they're tools before. Do you have a lot of experience with them? Not just the cbore, but other tools?

 

I was looking at those Kennametals yesterday but we definitely need HSS.

Yes, we have used a variety of different cutters from Internal Tool in the past with very good results.

The reason that we prefer Harvey is because of the convenience of them being on the east coast.

[matt m]

A Vote for Internal here.... and I have never had a bad tool from Nachi..... But never had a cheap tool from them either. Internal has always been well priced though and anything custom has always been fast and cheap for custom..

[kccadcam]

Cool, thanks. That's what I'm looking for. I hope they have them in stock since I can't find them in any catalogs. I sent a request for more information.

http://www.nachiamerica.com/download/1/Aqua-Drill-EX-Flat-3D-5D/

[The Cathedral]

http://www.nachiamerica.com/download/1/Aqua-Drill-EX-Flat-3D-5D/

 

Those looks like some pretty sweet tools. Unfortunately they're all carbide; I'm starting to think off-the-shelf HSS flat-bottoms are a pipe dream.

[mkd]

Spade drill inserts can be had in M42hss. And these can be flat or pointed.

Not sure if it is doable for you application...

 

Allied Machine has their TA line, some of which start as small as .690 dia

Bet if you had some common sizes you could blanket PO some custom sizing with them.

[The Cathedral]

I wish they were common sizes. They're all under .459" too. I have RFQ's out, but I've yet to get one back. We're willing to pony up and spend to have a large quantity of tools custom made for the FBCB's, it looks like we might have to for the drills just to make sure they're on hand when needed.

 

Thanks for the info everyone.