Aluminum Drill Bit Stop Collar Set - Superior Split Ring Design for Accurate Depth Control

Ric Maciel: These stops lock over the drill bit edges instead of inside the flutes of the bits

United States on Oct 10, 2023

Bernard Cinquemani: These worked fine. This set was the only one I could find that included a 7/32 collar, which is what I needed.

United States on Oct 10, 2023

Alex Bentley: The collars operate by squeezing the entire shaft of the drill so no alignment issue. This also keeps the collars from pivoting on a set screw. Simple to adjust and they hold tight. Works great with my dowel jig. Recommended

United States on Sep 29, 2023

Joy M. Hanawa: Seller reached out to me to make this right. Maybe it was just the set I purchased, the fact that they went out of their way to offer to fix this shows they care.
I like the ability to put the stop collar on any drill bit, however to get this stop collar to work you have to tighten it very hard and I had some trouble with the head stripping.

United States on Sep 25, 2023

Murray.: They look to be very durable.
But they are much more expensive than the drill bits which I had purchased to be used on.

Canada on Aug 16, 2023

Tony G: It’s what you’d expect

United States on Aug 05, 2023

Shawn Elliott: Collars worked well on a project just completed. These collars are much improved over the old set-screw ones that insist on seating slanted to the drill bit - these firmly hug the bit at a level 90 degrees. A bonus that these are made of aluminum, so no more pitting on steel or titanium bit edges.

Those, plus the vendor being very responsive made for a great buy.

P.S. follow the suggestion to keep the side with the size marked on it up (toward the drill) - then you won't scrape off the size text and end up having to rewrite it in felt pen later ;-)

Canada on Jun 21, 2023

meepx2meepx2: So far so good, no problems. Good design, compact height, pressure evenly distributed around the bit.

It should come with a storage case. A plastic vial would be a nice addition. In the photo I'm using an empty super glue plastic vial, but it doesn't fit the largest collar, so I use a rubber band to secure it. Also, the Alan wrench should be the length of the all the collars stacked on top of each other, so that it would be easy to slide them all onto the Alan key, and then slide them back into the vial.

Tips: #1. Avoid bending the drill bit by holding the collar using a pair of pliers. #2. Always put the sizes face up to avoid wearing them off.

Canada on Feb 16, 2023

Carl T.: Reçu tel que décrit. Méthode de maintien est efficace et n'endommage pas le forêt.

Canada on Nov 01, 2022

George G: Believe that the aluminum has more flexibility than the black metal . . . . own the black metal and find that it is brittle and has tendency to crack opposite to the tightening side of the depth stop. Hopefully I will get more use out of the aluminum depth stops without the inconvenience of having to use band clamps to retain the black metal stops on the drill..

Canada on Aug 06, 2022