Anyone got Avery's paper catalog around? There were some suggestions and I think the main rule was that reaming should be done with slow speed but no actual RPMs were mentioned.designerX said:Do any of the experts know the optimal rpm range for our #30 and #40 reamers considering the gauge material we're usually cutting?
Just fast enough to work. I.e., "very slow" rpm's, hand-turn speed.designerX said:Hello all,
Do any of the experts know the optimal rpm range for our #30 and #40 reamers considering the gauge material we're usually cutting?
Much thanks in advance,
Stan
ge9a said:I don't own any reamers. Am I missing the boat somehow?
Les Dial said:I doubt you have a motor fast enough to exceed the recommended cutting speed of 100 SFM in Al. -- Les
also, the drilled holes tend to be triangular in shape in sheet stock where the reamers make a much rounder hole.mdredmond said:They will enlarge holes with less burring than a drill bit. The downside is that you need to be very square on the pre-punched hole as they are less tolerant of misalignment than drill bits are. Your work will also be slower because they want to be turned at very low rpm.
You can buy them from any of the tool houses. I got mine from Cleaveland. Maybe six bucks? Pretty cheap, anyway.
This was my concern too, Les. I just didn't state it very well!Les Dial said:Bryan:
2000-3000 RPM is what I'm watching people do right now at work. The trick, I think, is to not start the cutter prior to inserting it in the hole. ...