HamptonT 33 #1 Posted March 19, 2017 Just wondering how it should be done. I've always ground them on my bench grinder. Share this post Link to post Share on other sites
rjg854 10,734 #2 Posted March 19, 2017 That's one way I tend to sharpen mine by hand with a file, but then I'm old school I just feel I don't use up as much blade just sharpening them. 4 Share this post Link to post Share on other sites
Jeff R. 35 #3 Posted March 19, 2017 I have been using the 4 1/2" angle grinder lately and this is my new preferred method. 4 Share this post Link to post Share on other sites
pfrederi 17,147 #4 Posted March 19, 2017 Flap wheel on an angle grinder 2 Share this post Link to post Share on other sites
Ed Kennell 35,767 #5 Posted March 19, 2017 I use the bench grinder and a bucket of cooling water. Then dress and deburr with a 12" half round bastard file. 3 Share this post Link to post Share on other sites
DennisThornton 4,769 #6 Posted March 20, 2017 4 1/2 grinders with different grits. Faster & better than anything else I've tried. Share this post Link to post Share on other sites
slim67 2,730 #7 Posted March 20, 2017 16 hours ago, Jeff R. said: I have been using the 4 1/2" angle grinder lately and this is my new preferred method. 6 hours ago, DennisThornton said: 4 1/2 grinders with different grits. Faster & better than anything else I've tried. I use a Zirconia Z80flap disc on my grinder at work and home. I think thats the easiest way. Share this post Link to post Share on other sites
Sarge 3,462 #8 Posted March 20, 2017 Ceramic flap disks on the 4-1/2" Metabo - goes quickly and the ceramic doesn't create nearly as much heat . If you decide to try these wheels do not use a lot of down pressure or you'll burn it and they won't cut . Best performance I've found so far is from CGW (Camel Grinding Wheels) . For polishing/cleaning they now make a non-woven surface conditioning flap disks in 3 grades - love those things ! Sarge 2 Share this post Link to post Share on other sites
WHX?? 46,739 #9 Posted March 20, 2017 4.5 grinder with a basic wheel, may have to give the flap wheel a try sometime. Make sure you balance. 2 Share this post Link to post Share on other sites
DennisThornton 4,769 #10 Posted March 20, 2017 If the blades are rough I get aggressive with a very coarse hard wheel but never enough to heat the blade edges to any color. Then usually a 120 grit flap disc to touch up the cutting edge. Love the flap discs! And I'm quite the fan of a fine double cut file to finish if I'm showing off. That sharp edge will last and last for about 10 minutes around here! Sand & rocks! I've got to set up two mowers. One for the lawn around the house and another for the trails & less groomed areas. 2 Share this post Link to post Share on other sites
T McCool 287 #11 Posted March 20, 2017 Angle grinder/flap wheel. Hasn't failed me yet😉 Share this post Link to post Share on other sites
can whlvr 991 #12 Posted March 21, 2017 angle grinder and don't even them off,ive done it so often they rarely go out of balance Share this post Link to post Share on other sites
