26PCS ER32 Spring Collet Set for CNC Engraving Machine

Great product. One problem was I received 2 7/16" collects, but no 11/32" collet.

Very nice collets. Work great in my homemade collet chuck on my lathe. Would for sure buy again.

Fantastic collet set. First day I had them I used at least three different collets. I would give 5 stars but, one of them had a couple of pieces of metal chips inside from the slot cutting. I could not hesitate to buy them again, just know you'll want to check each one before the first use to make sure any metal chips do not interfere with the closer. I used the 3/8 to tram the head on a new mill. I then used the 1/4" to hold a indicator to square up my new vise and to mill the vise keys to fit my slots. I then use the 1/8 to mill a slot in a part. The results were perfection.

Nice fit and finish for my collet blocks. The hold tight and run concentric. Great buy!

I used almost every one of these for a drill regrinding project, (1/8-1/2 by 1/32nds) and they all appeared concentric, gripped well, and gave drills with near perfect split points. (Perfect as far as I can measure.) I did not try to measure the accuracy of the holder, but if you are trying for sub 0.001" accuracy, I suspect that this should probably not be your set of choice.

These are great. I use them with a Harbor Freight mini mill. Great value and have performed perfectly.

Was a bit skeptical about the quality for such a competitive price - was mostly concerned about the runout. Have to say I was VERY pleasantly surprised. Using 0.001 indicator, measured the runout on 2 randomly selected collets. Runout was virtually imperceptible. Would need a .0005 or .0001 indicator to give a specific reading. The only negative is the etching of the sizes on some of the collets - not very deep, a bit off-center and some were pretty small. Not an issue for me now as I quickly built a simple plywood holder to keep them organized.

These are collet-shaped objects. They are not collets. The product page has out-right lies on it. It claims 0.0005" accuracy. I measured the Total Indicator Runout (TIR) of a couple of these "collets" and found some to have as much as 0.0028" of runout. That's almost 3 thousandths of an inch of runout. Let me repeat that. Almost 3 thousandths of an inch of runout. Almost 6 times worse than what's claimed on the product page. Might be ok if you're drilling holes, but if you're milling steel with an end mill this is unacceptable (even for a hobby-machinist). They have random gouges on them (from the "machining" process by which they were manufactured). The vertical slits are filled with burs that span the entire width of the gap (preventing them from compressing like an actual collet would). It appears that someone was practicing or learning how to make collets and decided it was ok (it's not) to sell their mistakes on Amazon. This company should be ashamed of themselves, and this product should be delisted from Amazon. A complete waste of your time. DO NOT BUY.

Durables, adaptables y de buena calidad...

Items are exactly what was expected and arrived promptly.

Excellent quality. Heck of a lot of pieces for the price. I don't know how anyone could complain. I've used 3-4 different sizes the first day or two and all work perfectly. Very happy.

A great set for my wood lathe. Easy to change out and fits #2 mt head stock. Runs true with drill stock arbors that I use. Need to make a 3/8 thread draw bar.

I have had a metric set of ER32 Collets and purchased this imperial set, so far the Collets that I have used have run concentric and I have had no issues with them, I can now hold any size item between the two sets I now have