Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

I used this to Bust the glaze on a 68mm bore, in a cast steel barrel of a motorcycle engine. It worked really well - 10 - 30 SAE Oil, 1,500 RPM for a few minutes, left a very smooth set of honing lines. BUT 1: you have to REALLY take time getting th e abrasive out of the barrel after the hone. and 2) I think you may need to run the devices for longer than I did, as the scoring marks were still evident after running in the Bke.

Excellent Hone, does the job for me.

Nice brush home all arrived in tact and ready to use

Works as described. Super tight fit. Works best with someone to hold the block youre working with.

Awesome bead hone

Performed as needed

This is the only way to go. Just get the right size for your cylinder

Spec was crosshatch 30 to 45 degrees. Profiled the wet sleeves first, they were all in spec, so went to town. Low speed drill, brisk in out action achieves great results. Lubricate the hone before every use. Go a little past the return direction so you reduce the low angles at the end of the stroke.

Worked as expected

Great