8pcs H8 Metric Machine Reamer Sets Tool Chucking Reamer Set Straight Flute Milling Cutter 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm

I bought this set a little skeptical about the quality. Upon arrival I unboxed the bits and tried to remove them from the rec packet they came in. The plastic case was super thin and cheep, not a deal breaker for me, however a case with separate compartments would have been nice. I had to rip the case open to get them out. But i have a bit organizer, so again, not too big of a deal.After removing the bits I grabbed my calipers and checked how true they were to the spec. I was astonished that they measured down to .00mm. The 8mm I first sampled was 8.00mm on the dot. They were exactly to size. I was very impressed that they were that close. I was expecting a .01 variance, but nope, on the dot! My bits had very clear writing on them. I saw a few people post reviews and said they couldn't read them, but mine were perfect.Bitd fit nicely into my SnapOn 3/8" drill chuck and my Jet Mill R8 collets. I did not have issues with the fitment and they clamped in very nice. On the mill they were true and did not have any visible deviation, although I did not test them with a dial indicator. Bits were very sharp and cut well too. However I really wish they were about 3-5" longer, but again, not a deal breaker or enough too remove any star ratings off this review.Over all, I'd buy them again. If you're trying to keep to a budget and need a good reliable tool - I'd suggest getting these as well.

Very sharp and well made. Worked perfectly for the application I purchased it for.

The one reamer I used worked fine. Not happy with the packaging. Reamers should be separated from each other as any other cutting tool so the cutting edges do not get damaged.

Good quality for the price.

I got this set to open up two 8mm holes to 10mm in aluminum brackets for an ebike headlight. It worked great and the smaller size was useful in slowly opening up the hole. Also great that they're sized to work in a standard drill chuck.

this is a great product at a good price .i was cutting a broken bolt out of a flywheel and i did not quite get the hole center so i bought the reamer setand used them to centralize the hole so i could retap the treads and reuse the fly wheel on a freightliner truck .

Upon receiving the readers, I measured each piece to find that they were all at specification, with no variation at all. I am pkk look eased with the quality for the price. Thinking of a second set for standby just because I can.

I bought this back in march for doing plastic work. They work pretty well for that. Just now realizing they send me two 9mm reamers and no 10mm reamer. So, check your set to make sure you have the full set when you get it.