Coobeast 13Pcs Preset Torque Screwdriver with S2 Bits, 1/4” Drive Torque Wrench Screwdriver Set for Maintenance, Tools, Bike Repairing and Mounting, Inch Pound Torque Range 10-70 In-lb

Excellent for what it is, definitely not for heavy-duty use, but I use it for optic mounting and it's perfect for that. Comes with a nice enough box. The dial/torque selector could be a little more accurate or rather easier to read, but it's to be expected from a product in this price range, and I'm still overall very satisfied.

I had to torque down some scope rings and scope ring caps - This was one of the better rated cheap torque adjustable screwdrivers on the market. I don't know if the readings are accurate (I have no way to measure that) but if the indications on the product are to be believed, then it did its job well. It held together to do what I asked it to do, and it was able to get everything torqued down. I really liked how they packed it. A nice blow-molded hard case, with internal cushioning across the face of the driver, and moisture absorber for preventing rust/corrosion. Adjustment of the torque value was easy - just pull the base down and rotate! Sometimes I did find it landing between two values - not sure if it's supposed to do that or not - but I double-checked everything before I started cranking on stuff and made sure the tool was set up right, and didn't have any issues after that. The tool feels nice in the hand and is good in all dimensions. For those who are still confused how you operate this tool, you look on the center gauge, see it's at 10 or 20 or 30 - whatever - and then down at your radial dial, and if you see 30 on the top gauge and 3 on the dial, then you're at 33-inch-lb of torque. Easy.

Came pre calibrated to within an inch pound. This one tested better than torque screwdrivers that cost twice as much. Good value.

Perfect

It's great for what it does, you will need to buy additional screw heads though it doesn't come with a whole lot.