1200 rpm bench grinder?

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Forum topic by woodnoobie posted 01-16-2010 08:56 AM 3574 views 0 times favorited 3 replies Add to Favorites Watch
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5 posts in 3113 days

01-16-2010 08:56 AM

A few sources have recommended using a 1200 rpm bench grinder for sharpening. None have offered a manufacturer or model. Anyone have a recommendation?

The closest I’ve found are variable speed grinders with the slowest speed at 1725 rpm. These are Delta and Craftsman, which bear an eerie resemblance to one another.

Anyone care to offer thoughts on the differences of having a 1200-1725 rpm vs. a standard 3400~ grinder?


3 replies so far

View Paul M Cohen's profile

Paul M Cohen

86 posts in 3801 days

#1 posted 01-16-2010 09:14 AM

I think you are looking for a 120 RPM or less grinder. Something like a Tormak which I think runs at 90 RPM.

-- Paul, Beaverton OR,

View davidpettinger's profile


661 posts in 3224 days

#2 posted 01-16-2010 09:21 PM

If you already have a grinder, you may want to look at this website. Fine woodworking has quoted them, along with making the website a readers choice. This company offers stones for both 1725 and 3450 rpm as well as jigs to aid in sharpening your tools.
There is a book offered by Taunton Press called Grind Perfect Edges Without Burning In just seconds, get a tool ready for honing
by Joel Moskowitz
This book explains how to use a higher speed grinder and jigs for sharpening.

-- Methods are many,Principles are few.Methods change often,Principles never do.

View TopamaxSurvivor's profile


18285 posts in 3699 days

#3 posted 01-17-2010 01:08 AM

1725 and 3450 rpm are the standard motor speeds depending on whether it is 2 or 4 pole motor. Anything else will have to be gear driven to change teh speed or changed electronically. I don’t have any issues using a 1750 grinder for sharpening.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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