Engine Cylinder Hone Kit 34mm to 60mm with 4 Extra Carriers Adjustable Handheld Honing Machine Tool Kit with 16 Stones Sizes 3" x1/4" x1/4" - Works for Mid-Size to Larger Car Engines

I will update after using, but arrived very fast, nice wood box, stones of 120 grit 180 220 & 320 grit. Bought for bore honing three virgin 60mm cylinders to 60.400, will update when finished. Update: Some of the stones have the steel backing incorrectly affixed so they wont fit in the mandrel. The 120 grit stones aren't flat on the back plate, so they rock in the mandrel, totally useless. After much screwing around I got a cylinder overbored .0020", but on the final strokes the tool kept chattering in the bore, so I've got a perfect bore with chatter marks in two places. Fortunately they are below the rings so no performance degradation, but it sucks that they make a potentially excellent tool so poorly that it fails at it's designed task. Maybe You'll get a good one. I had to take this one apart, file smooth all the slides, change the spring retainers, & file the backs of every stone, but now I'm boring 19 thousandths within a quarter thousandth tolerance! Bore with 120 grit to within .0030" Finish boring with 180 grit to .0020" Rough Hone with 220 to .0010" Finish Hone with 320 grit Plateau with a clean WD40 soaked ScotchBrite pad vertically just once down & once up to cut the peaks off the honing scratches, don't twist or spin in the bore or You'll be smoothing the valleys that hold the oil. I'll be buying the 50mm to 75mm next, overall best tool for the job under $500

I needed a proper hone for my grandson's KLX110 that had scarred the cylinder. I have used an AMMCO brand for years when I was in the powersports industry and this was the closest I could find without spending big money. I used the included stones and cleaned it up perfect, finishing with the finest grit. Other reviews suggest that the arbor will not fit in a 1/2 inch drill chuck without grinding it down. That is true if you have a cordless drill. I tried my Ryobi, Craftsman, and Porter-Cable. However, it did fit in my corded DeWalt which uses a much larger 1/2 inch chuck than the cordless ones. It would be great if I could get some larger stone carriers for larger cylinders than the 65mm units I ordered. The tool itself should be the same as the other tools I have used were, just use wider stone carriers for larger cylinders.

i think this is a poorly made cheap product an could not recommend it to anyone, 1st one arrived damaged and second one broke during first use and is now being returned to amazon

It’s a good deal when compared to the price of a name brand hone. However, the end of the driver kept shearing the pin. I finally just welded it solid. Second, some of the stones came cracked. Luckily it was not the ones I needed. If name brand stones fit this, that’s what I’ll buy for replacement stones. Otherwise, it’s heavy and feels of good quality. It does a good job of making the cylinder round again.

I went to use the tool but there is a little too much glue on the metal to fit the stone in the fixture. It is that way on 3 of the 4 stones in the first set I checked. I won't need a manicure after filing all of these down.

Cylinder head baking (engine cylinder head resurfacing/heat treatment) is a specialized process used to restore and strengthen damaged engine components. It involves applying controlled heat to remove stresses, eliminate contaminants, and prepare the surface for machining. This technique is especially useful for repairing warped or cracked cylinder heads. When done correctly, it improves durability and performance, extending the life of the engine. However, it requires precision and professional equipment, making it unsuitable for inexperienced handling.

Stones break easy when inserting them.

Esta herramienta es un caño y el precio es buenísimo no lo dudes y conseguí la tuya.