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

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

Performed as needed

Worked as expected

Used the 89mm size hone for my 84mm cylinders in my 52 motor and seemed to work good. Just lubed it up with some motor oil and followed instruction and the cross hatching seemed to come out really good, gotta speed it up on the last few strokes or else your cross hatches will not be close to 45 degrees which I found out quick enough.

Works great! Not as deep cutting as honing tool with stones. Used this as a starter and finisher. Leaves a great finish! I used this on my 2.5L Subaru

worked real good.Used it on a ford flathead motor

Amazing for auto engines

Ive been using these honers for years. Hands down, the best money can buy. Cleans up various bores and preps the cylinders with nice cross-hatching.

Great for refreshing any EJ25, they have a 99.5MM or 3.91 inch bore for the 4 inch hone works great for them. I have done 2 of them now, put the drill on low speed and squirt oil on them as you go will give good results.

Worked really good on 6.0 lq4 engine rebuilt, easy to use with plenty of lubricant.