I purchased a Grizzly G0759. I also purchased a set of HSS Coated end mills and a Collet Chuck that I thought would hold all of the end mills.

I learned via YouTube that an end mill with a flat spot for a set screw is suppose to go into an endmill holder not a Collet Chuck.

Is this correct? Do I need to buy a set of end mill holders at $20+ each or a set of collet end mills?

I am not finding any end mills without the flat spot.

Thanks and sorry for the very basic newbie question.

"G"

I learned via YouTube that an end mill with a flat spot for a set screw is suppose to go into an endmill holder not a Collet Chuck.

Is this correct? Do I need to buy a set of end mill holders at $20+ each or a set of collet end mills?

I am not finding any end mills without the flat spot.

Thanks and sorry for the very basic newbie question.

"G"

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