2pcs Adjustable Screw Depth Screwdriver Bit Holder Magnetic Steel Screwdriver Drywall Bit 1/4 Inch Hex Shank with S2 Phillips 2 Screw Driver Bits

Good item!

Great for setting screws in drywall. Easy to adjust for the depth of the screw. Easy to change out bits. Magnet is strong and sturdily holds the bit in the driver. Seems to be made to last.

I had a large one of these about 20 years ago. It worked perfectly all the time, was made of brass and contained no gasket. No clue where it went.This little set works well for both drywall screws and in wood working. I found the trick to getting them to stay exactly where you set them especially during use is to set the bottom ring where you want it and then torque down the top ring pretty right. Just hand tight, not using tools. When the gasket starts to spill out of the two fittings, it's right enough. The silver bumper ring on the bottom should prevent the lock rings from loosening when they bottom out against the board. The magnetic bits are strong and hold 3 inch screws no problem.

Does not work well some screws Poor tip or poor screws?

It works pretty good the way it comes. It did move a little if you hit the board (or whatever) hard. I removed the "O" ring between the lock ring and sleeve and now it seems to be locked to the set depth better. Something harder like a plastic washer might protect the locking surfaces and keep it secure.

One bent within 20min of use. Not a good product.

so cool so good

Great thinking but not the best made product. You set the screw depth you want then after a few screws in the depth needs to be reset. A bit annoying to have to reset every few screws.