Hello to all!

I am new in this forum and I would like to help me in a minor problem!

I have a hole 8.5mm and I would like to make a tap (M10). The depth of the hole is 22mm.

What will be the Speed and the Feed Rate?

Thank you in advance!

dcis77!

M10 x 1.5 thread. A good starting point would be 196rpm and 9.8 ipm.

Thank you jjasshipley!

One Question again!

I have a carbide 16mm with 6 flutes (50mm long).

I want to pass around a piece of steel to take 0.1 lateral oversize.

I use 1800 RPM for Speed and Feed Rate 400. Is this correct?

It is very noisy with these values. My cnc-machine is "screaming".

What Spindle Speed and Feedrate is recommended?

Thanks again!
dcis77

If it's screaming like this the carbide tool doesn't last.
You can try slow down RPM and increase feed.
Or using a high speed tool, and slow down RPM.

Konrad