Climax Metal 2C-125 Steel Two-Piece Clamping Collar, Black Oxide Plating, 1-1/4" Bore Size, 2-1/16" OD, With 1/4-28 x 3/4 Set Screw, 1 Count

I needed something that could hold to the vibration of a 2-stroke engine as the clamp holds essentially what is the intake manifold.I used my rotary tool to bore it out slightly more as the next size up would of been too big. It wasn't impossible with double cut carbide bits, but the metal is definitely hard and dense. Physically speaking, it isn't cheap. If I ever need any sort of collar shaft I will return to this seller.

well made, fast delivery, works as it should

I wouldn’t use this for what it’s advertised for , extremely painful and pinches out of this world . Heed the warning .. do not put on your junk .

Great pieces but not meant for anything with oil. They rust quickly. I love them so far.

Fit well. The perfect amount of weight to accomplish the desired effect.

First, I would like to thank Climax Metals for their professional customer service. This was an international shipment to southeast Asia. Not only did the item arrive safe and secure, but I got my order ten days earlier than expected! So again, thank you Climax Metals for your service. Others could learn from you.That said, the collar is very well made and provides a great example of adaptability of modern technology to holistic health techniques. It will likely require some practice placing the collar so as not to nip or injure the skin. But with a little patience and making sure you have the correct size, you should do well. And one last point, you will need a T30 torx screwdriver to secure the screws in place.Good luck and stay healthy!

The device is nice but it rusts and tarnishes. The bolts also rust and can be very difficult to tighten/loosen without a tool. Definitely something enjoyable but will need a replacement very soon after wearing. Time for an upgrade.

These were as described and quality is great.