RATTMMOTOR 4" 4-Jaw K12-100mm Self-Centering Lathe Linkage Chuck 3500R/Min 60N.m 10KN, Precision Machining Center Wood Metal Lathe Chuck 16mm Through-Hole for CNC Router Engraver Milling Machine

I was quite impressed with this product, it is a Sanou lathe chuck and is of surprisingly good quality for the price.I have not actually used the product yet so I cannot speak to runout accuracy or anything. Like most lathe chucks it requires a back plate to mount the lathe chuck. It comes with the extra jaws shown and comes with the tightening wrench. It works smoothly, tightens well, the jaws are easily removed and changed out.This is a vastly better quality lathe chuck than what my nearly 50 year old metal lathe originally had. My original Delta/Craftsmen lathe chuck weighs 1/3 what this one does, is made of light pot metal and is not self centering like this newly purchased lathe chuck is. I am very impressed by the quality and the price of this unit.

This chuck fits the Harbor Freight 33684 7x10 mini lathe and other lathes that have the three bolt from the rear rear mounting. It is a high quality chuck and is very nicely finished. It installed easily and I was up and running in about a half hour. I did a lot of looking around and this one was a better quality than others that I saw for twice the price. Very clean machining throughout. Even the chuck key is nicely finished and spring loaded for safety. I was lucky to find this great bargain. So happy!

Ordered 2 identical ones. On the sticker says Rattmmotor but actual product brand is Sanou. The product is well made, has nice finished surface, the jaws fit snug. The problem is that the mounting screws are hex bolts, impossible to insert into the mounting holes on the lathe spindle (no space) Had to use M6 screw body with separate nut to mount the chuck. The chuck body fits well on the spindle, the jaws have about 0.1-0.15 mm runout, (not perfect but acceptable). One of the chucks runs smoothly, the other one got stuck every 360 degree rotation of the jaw centering plate. After taking it apart and adjusting (trimming) the plate with abrasive rubber wheel it works fine. OVERALL GOOD VALUE FOR THE MONEY.

5", 4 jaw self centering plain back chuck. Having bought several Chinese chucks, the only high quality ones have been marked Sanou...and thankfully, that's what I received this time. (They should really include that in their description...they'd sell more).Packed to survive a nuclear blast, machining is spot on, and every one has run true out of the box with less than .002" runout. No grinding dust or burrs inside this one, which is a good sign.Other than disassembly and cleaning prior to use, they are bullet proof and well worth the money.Too bad America can't get back into the business of manufacturing affordable machines and parts, but until the government gets out of the way and stops punishing success, I'll have to keep buying what I can afford...like this chuck.

Fits like a glove

This was for my HF mill/drill combo with the help of an adapter plate. Took a file to the slides and lite grease and now works great.

Good quality. Nice machined piece.

not bad for the money

Corresponde a la descripcion, el chuck es de buena calidad buen material y funciona muy bien exelente.