2007-06-28 08:58:34 · 3 answers · asked by robinett420 1 in Science & Mathematics ➔ Engineering
"High speed" is definitely in the eye of the beholder.
I've seen drills at 850 rpm called that, and then again, drills at 10,000 rpm called that.
Handheld 3/8" drills rarely go beyond 2,000.
Some surgical drills operate at nearly 100,000 (http://www.conmed.com/products-power-coolflex.php). Some dental drills clock in around 300,000 !!!
We'd need to have a rough idea of the type of drill you reference.
2007-06-28 09:04:05 · answer #1 · answered by C Anderson 5 · 0⤊ 0⤋
I notice that the bigger the chuck size, the lower the no-load speed... 3/4in chucks max at 400 RPM, 1/2" are close to 1k and finally 3/8" drills are typically close to 2k. Seems to be related to chuck size - but have no idea why?????
2007-07-01 01:33:55 · answer #2 · answered by Thomas S 2 · 0⤊ 0⤋
Dremel brand, and other similar high-speed rotary tools operate anywhere from 15,000 to 30,000 rpms (no load) depending on the model.
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2007-06-28 17:19:53 · answer #3 · answered by tlbs101 7 · 0⤊ 0⤋