Okay I have never really used a reamer before but I bought one and I'm wondering what kind of RPM do you run using a reamer?
I it seems logical to go real slow but I want to be sure before I go using it, that thing cost 70 bucks and I don't want to fry it.
My drill press runs at 200 rpm that slow enough or will I wear it out fast?

thanks

RPM depends on what size it is and what you are reaming. 200 will be plenty slow I am sure and use quite a bit of pressure.

Diameter matters too, the bigger, the slower. Large diameter and steel( or stainless)=slow~60 rpm: aluminum and smaller diam= fast- up to 800 rpm. Use a cutting oil, or WD40 if you don't have any.

Diameter matters too, the bigger, the slower. Large diameter and steel( or stainless)=slow~60 rpm: aluminum and smaller diam= fast- up to 800 rpm. Use a cutting oil, or WD40 if you don't have any.

we use 1 inch reamers all the time at work and use a standard 1/2 inch drive millwalkie drill with them i dont know about the RPMs

i have the reamer for the Chevy 1 ton stuff, i got it from Goodson, and they say 40 RPM's

o.k. time for Machinist 101.....:p


the formula for figuring out what RPM to run any cutting tool is ............

cutting speed X 4 divided by Diameter

( cutting speed is given in surface feet per minute)

for a high speed steel drill bit use a cutting speed of 80 to 100 in mild steels

the rpm for a reamer is approx 40% of the drilling rpm


so 100 X 4 = 400 divided by ? ( lets say .750" ) =533.3333
40% of that rpm is 213.333
so 200 will be fine.......;)

reamer? i havent even met her