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Hand Reamers
9CrSi (Alloy Tool Steel) Tool
The 9CrSi steel is a low alloy tool steel and low speed cutting tool steel. It has high hardening capacity and high tempering stability. Good for wide ranges of applications.
Straight Flute
Straight flute tools allow chips to collect in the flutes when cutting. Well suited for most applications in shallow cuts. For reaming cylindrical shape holes.
Easy to Use
Can be hand operated by use of wrenches. Great for light cut, repair work, or simply for enlarging holes. Always keep reamers clean, and used with machine oil for long service use.
Features
- Designed with the base substrate without any additional coatings
- With high hardness and durability, the reamers provide finish cuts.
- Holes can be with exact size and shape after the reamers' processing.
Wide Applications
Used for handicraft processing, and bore machining. Suitable for accurate reaming in aluminum, cast iron, copper, plastic, wood, and other soft materials.
Cut and remove the thin layer metal on hole surface that has been processed, mainly to improve the precision of holes and reduce the surface roughness.Used for semi-finish machining and finish machining of holes.
Doran Maxwell
2025-07-11 14:40:26
I bought these to ream out the undersized cylinders on a few black powder revolvers. They cut smoothly and the reamed hole was the size it was supposed to be. They are a few thou bigger than ideal but that is not a flaw..they are what they claim. If I wanted the exact size that would be ideal I would have had to buy a very expensive custom ream.
COP
2025-07-08 15:13:49
I bought these to facilitate boring out some 3/16" brass bushings to .250". They worked just fine. As has been mentioned by others the packaging for them was not ideal; they came in single sealed plastic bag, not ideal for a "precision" cutting tool, but they did work just fine for me regardless of that.
Fred J. Baldino
2025-06-14 15:57:53
I used this reamer to do a counter bore on 4140 steel ,I used good cutting lube and took my time, the finished product came out well.
O. Rettinger
2025-06-08 15:52:51
So, first off, of the two reamers in the package, only one was actually .375" in diameter, with the other being .373" instead.Second, the grind finish on the tooling was extraordinarily rough. Fortunately, I have the other tools necessary to hone cutting tools, but I really shouldn't have to clean up a brand new tool, and make sure the cutting edge actually has clearances.And then, as the final insult, the one that was actually the correct size broke a whole section out the very first time I used it. This was while reaming out a .365" hole in soft aluminum, using a material appropriate cutting fluid, so it's not like I was being particularly taxing on the thing.So, either it isn't actually H8 tool steel, or it was heat treated incorrectly, or it's just junk. I'd have bought a better one if I could have found one on Amazon, so I guess I'm just going to have to get one from an actual tooling dealer.I can only recommend NOT purchasing this item, or any similar item from this manufacturer. I presume the rest of the line they carry is of equal "quality". Disappointing, as I have had good luck with items from this manufacturer in the past, though admittedly those were not machine tooling. Lesson learned, I suppose.
Customer
2025-06-05 10:06:59
alright
William
2025-04-08 13:31:39
Don't buy. Not accurate. Dulls first use. Junk.buy a more expensive one.
MOONRUNNER
2025-03-19 10:06:11
They're decent, but definitely seeing stand up to much on hard metals. You will probably get 2 good uses and after that it'll take more work
Eddie
2025-01-12 16:58:05
The reamer was advertised as 1/4 reamer.It actually measures 0.240 “. Doesn’t team the correct size and therefore useless to me.
Tom
2025-01-03 14:07:06
good reamers for the price
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