HHIP 3900 0822 R8 Round Collet Review

much deeper than American made collets. The depth is .25" on this collet and .125" on a USA made collet. This will prevent the drawbar from fully engaging the collet. Couldn't test this for concentricity, cutter lock, etc. because it wouldn't go into the quill.

My set (not sure if it's every set or just runs) is a hair longer than it should be. It was assumed that it was about the finishing of collets. This means they won't fall out properly and won't be held properly when you try to tighten one of them. They looked well made and hardened, but the wrong size issue meant I wasn't able to properly lock the end mill in many cases. . For example, I usually use a half-inch end mill from JYC International. They are cheap and available through Prime. It…

This collet has a threaded end no larger than 1". So if you don't have a short drawbar or switch to a fully threaded as an adjustable alternative you will damage the drawbar when drawbars are cheap and easy to replace but when you try to tighten a chuck the threads go down before the cutter really does tightened and locked in place is 2" thread on top. That brings me to my second problem. Threads don't come deburred at the factory. Don't start tapping. After I pierced the tap, the burr broke…