New Mill - Help with tooling

[matthewdenny]

How many collets would we need? I'm not sure I understand why you need more than 1. Don't you take it out, change the tool and put it back? Also does anyone know of a source (other than eBay, which the school won't use) for B&S #9 collets?

[Cory]

Originally Posted by matthewdenny

How many collets would we need? I'm not sure I understand why you need more than 1. Don't you take it out, change the tool and put it back? Also does anyone know of a source (other than eBay, which the school won't use) for B&S #9 collets?

You need one for every size tool you intend to use. A standard set of R8 collets would be 1/16 to 7/8" in 1/16" increments. I dont know much about brown and sharpe collets but a quick googling shows they can be bought here You'll also want a drill chuck. For that you should be able to buy any drill chuck and then a B&S #9 to jacobs taper adapter and mate the two.

[asid61]

Originally Posted by Cory

You need one for every size tool you intend to use. A standard set of R8 collets would be 1/16 to 7/8" in 1/16" increments. I dont know much about brown and sharpe collets but a quick googling shows they can be bought here You'll also want a drill chuck. For that you should be able to buy any drill chuck and then a B&S #9 to jacobs taper adapter and mate the two.

Adding on to this:
You probably won't need 1/16" increments. 99% of tooling for FRC is either 3/8", 1/2", 5/8", or 3/4". The only thing that I use 1/16" increment for is some dumb custom stuff that I made. In general you can get by with just 3/8", 1/2", and 3/4" as long as you buy endmills in those shank sizes. The 5/8" was just for a 5/8" endmill. Anything between 1/8" and 3/8" endmills can be found with a 3/8" shank.
That being said, if you pick up a box of endmills at a machine tool auction, having all the 1/8" or even 1/16" increment sizes can come in handy.

[matthewdenny]

So lets say I have a 3/8" carbide end mill. Do I just place it in the 3/8" B&S Collet and start milling?

What about a 3/8" Drill bit?

Link to collet set: http://littlemachineshop.com/product...ProductID=3011

[asid61]

Originally Posted by matthewdenny

So lets say I have a 3/8" carbide end mill. Do I just place it in the 3/8" B&S Collet and start milling?

What about a 3/8" Drill bit?

Link to collet set: http://littlemachineshop.com/product...ProductID=3011

Place it in the collet, stick it in the spindle, tighten the drawbar, and then you're good to go.
For drill bits, it varies. For fractional sizes that you own the collet for, you can use the collet. Otherwise you'll need to use the drill chuck.