9 Pcs Depth Stop Collar Durable 3-10mm Ring Positioner Spacing Positioner Locator with Hex Wrench for Woodworking Drill Bit Consistent Drilling

Been making do with all sorts of tapes etc and finally bought these - wish I had done so years ago. Very good price as well

OK!

A straightforward product that would work fine if all the little grub screws were included - my version was delivered very quickly but with missing grub screws. Oh well, just have to hunt around local suppliers.

Nicely made, stainless steel with 2 opposing grub screws to grip the drill bit. Can definitely recommend

Fine to use on HS drill bits or masonry bits, but not for a wood bit. The two grub screws don't work well on the deep groves of a wood bit, and just moved when I was drilling, what was definitely what you want when drilling in expensive timber, as the bit went straight through the other side.EDIT to Add:I used the 10mm stop today, and found the thread in the collar for the grub screw was unusable, so I could not use the depth stop. I even tried other grub screws, but it was the thread cut inside the collar itself that was faulty. Would not buy again.

The one which I most needed to use has malformed threads, so the grub screw won't go in (came loose in the box). Disappointing.

Exactly what I needed. Actually better quality than I expected. Very happy.

Chose these as have 2 grub screws, believing that would make the collar stay put. It didn't, tried several locations on a 6 mm bit and tightening grub screws as much as possible but it always came loose as soon as collar touched at set depth. May be down to shape at end of grub screw, will look into when time allows.

Perfetto

Esta muy bien que tiene ajustes en los 2 lados

Producto para tener en cuenta si de vez en cuando lo necesitas. Yo no lo uso frecuentemente pero veo que es de los “chinos” ya veremos que duran puestas....