Need to know if a #201 bit

How To Machining
1

I need to know if a #201 bit is an up cut or down cut

2

It is an upcut endmill.

3

@david5 The #251 is a 1/4 Downcut endmill

1 Like
4

#205 is 1/4 Downcut Endmill

5

Since the #205 is described as working well for aluminum, plastic, brass, and copper, it is an upcut endmill:

Iā€™m not aware of any downcut endmill geometries which work well in those materials.

6

Lol, this means that for 2.5 years I was calling my downcut 1/4 endmill with the wrong number. :slight_smile: :slight_smile: :slight_smile:

I need to learn the right number now. :slight_smile: