Cal - I have a variable speed grinder that I bought at sears for a good
price.   The grinder does not go down as slow as I would like but I use a
32A60 K8VBE stone which is a "cool" running abrasive.  On the other end of
the grinder I use a high density felt wheel with green compound.  I still
cool the blade often and have not, yet, had a problem with losing the
temper.  I also have a hand crank grinder that is well used.


Bill and Colette
bilcol@b...
www.bohlfamily.com

Bill

-----Original Message-----
From: OldTools [mailto:oldtools-bounces@s...] On Behalf Of Cal
Meier
Sent: Friday, February 16, 2018 1:58 PM
To: oldtools@s...
Subject: [OldTools] What is a good slow speed grindstone

I know the emphasis is on hand sharpening using a variety of stones.  Yes I
profit from the postings and sometimes the debate over oil versus water :-).

But, more than a few on the list have mentioned using electric pigtailed
grinders to aid in at least initial sharpening.  I receive advertisements
talking about "low speed" grinders for sharpening tools.  When I check, the
speed is commonly listed at roundly 1750 rpm.  What is a good "low speed" to
sharpen at using an 8" wheel.  Any thoughts or strong opinions would be
appreciated.  No I could not find my Dad's old hand crank grind stone and my
cousin has my grandfather's pedal powered stone.

Cal Meier
Central Louisiana


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