It provides excellent tightening of the stopper on the drill, due to the fact that its screw (Allen) is on the outside and not on the body of the cutter. If you have to choose between the two types, this is non-negotiable. Its packaging contains three drill stoppers 6-8-10 mm (one for each size).

Excellent product. The stops are metallic and attach tightly and correctly to the drill. It definitely helps a lot in avoiding mistakes!

Excellent application and the fact that it tightens externally to the drill is much more effective as previously, with the internal screw, many times they would come out of their position during the opening of the hole.

For those who want to precisely adjust the depth of the hole opening, this is the appropriate accessory.