Flex-Hone Tool - BC30018 Brush Research FLEX-HONE Cylinder Hone, BC Series, Silicon Carbide Abrasive, 3" (76 mm) Diameter, 180 Grit Size

Used this to hone both cylinders of a 22 hp Briggs VTwin lawn tractor engine that needed a new connecting rod, a new piston and 2 sets of rings.Honing the cylinders is needed to allow the rings to break in and seat properly. Since I don’t expect to do this regularly I was between a cheap set of honing stones for around $20 and the Flex hone which I’d seen on YouTube and was selling on Amazon for $37.The reviews on the honing stones were terrible (cheaply made and inconsistent result) and the flex tool reviews while not numerous were mostly positive.Several excellent YouTube videos by the manufacturer and a call to the seller about whether the 3 inch (180 grit) tool would be good for my 2.96 inch cylinder convinced me it would be worth the extra cost for the Flex hone tool.What a FANTASTIC result in less than 10 minutes to do both cylinders following the video instructions of coating the tool with clean oil and moving in and out of each cylinder for 1 minute. Perfect cross hatched pattern on both.Great tool and good value considering the $200 of parts and many hours of labor to complete this project.

Tried using a hone on a motorcycle bore but it was going to be slow going. Used the Flexhone and it did a beautiful job of crosshatching the glaze. Had to be careful as it was a bit aggressive but did the job so quickly it was a real pleasure to use.

Purchased 76mm for honing an old ATV cylinder. Some WD40 and several passes later the bore is cleaned up and has a nice surface for the new piston rings to seal in. Cleanup is easy with carb or brake cleaner. Make sure to get the right size hone for your bore!

Did what it was spoda do

its great, remember to clean it prior to use.