Chamfering, counter sink, counter bore Where to get 'em?

[turningwheels]

I am not sure that I am using the correct search terms in the Interwebs when looking for the above as most of my results don't seem to fit the bill. Mostly it seems that there is a lot of router bits for wood and basic counter sink bits for general use. I am looking for a set of chamfer bits that can go from softening the edges of a metal hole 1/8" to 1" or more.
where do I find such unicorns in the vast amount of overload choices?

 

[Jim F]

Search results for: 'zero flute countersink set'

Shars Tool

www.shars.com

 

[turningwheels]

Thanks! Now the next question is what is the most common angle to use? 82, 90, 60 degree? I would assume 90 degree... What say you?

 

[Jim F]

Thanks! Now the next question is what is the most common angle to use? 82, 90, 60 degree? I would assume 90 degree... What say you?

82 for countersinking screws, I use 90 for deburring.

 

[WesPete66]

What about the number of flutes on these tools? They are made in zero through six flutes. What effect does the number of flutes have on tool performance or application?

 

[ACHiPo]

I was in a similar position a few months ago. An experienced machinist recommended single flute 82 degree which work to deburr and countersink imperial screws. I’m happy with them. Metric screws are 90 degrees.

61B Series - M.A. Ford

www.maford.com

i also like these zero flutes for countersinking wood, plastic, and deburring metals:

ZErO Flute Countersinks - ARCH Cutting Tools

www.keocutters.com

The single and zero flutes don’t chatter.

 

[projectnut]

82* countersinks are used for imperial fasteners, 90* countersinks are used for metric fasteners, and. 100* countersinks are used for aircraft fasteners. As mentioned single and zero flute countersinks are least likely to chatter. I have MA Ford and KEO single flute ones. They range in size from 1/4" to over 2" in diameter. They can be sharpened on a grinding wheel if you have a steady hand, or on a surface grinder with a jig. MA Ford makes a jig for this purpose. The jig is expensive if purchased new, but occasionally show up on eBay for more reasonable prices. Also a number of quality single flute countersinks show up from time to time.

 

[mickri]

I have been looking for a 60* piloted countersink with changeable pilots that doesn't break the bank cost wise. I want to use this to cut counter bores ( wrong term??) to match 60* dead and live centers when turning between centers. I have found some 45*.

 

[Jim F]

I have been looking for a 60* piloted countersink with changeable pilots that doesn't break the bank cost wise. I want to use this to cut counter bores ( wrong term??) to match 60* dead and live centers when turning between centers. I have found some 45*.

How big do you want to go?
A #8 has a .750" body.

Combination Drill & Countersinks (Center Drills) - 60

Shars Tool stocks a vast selection of combination drill & countersinks for several applications. Browse our extensive line of American-made and imported center drills with a variety of sizes, material, and point angle. Take a look also at our array of hig

www.shars.com

 

[ACHiPo]

82* countersinks are used for imperial fasteners, 90* countersinks are used for metric fasteners, and. 100* countersinks are used for aircraft fasteners. As mentioned single and zero flute countersinks are least likely to chatter. I have MA Ford and KEO single flute ones. They range in size from 1/4" to over 2" in diameter. They can be sharpened on a grinding wheel if you have a steady hand, or on a surface grinder with a jig. MA Ford makes a jig for this purpose. The jig is expensive if purchased new, but occasionally show up on eBay for more reasonable prices. Also a number of quality single flute countersinks show up from time to time.

What ProjectNut said!

That's what I'd meant to type, but I should know better than to respond before coffee.