Wolfcraft 4525 Drill Guide Attachment for 1/4-Inch or 3/8-Inch Drills

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The overall sturdiness suffers due to the plastic nuts and washers securing the rods to the the base. The plastic handle that screws into the base was flimsy and I had no faith in relying on it. But it was awkward to hold securely when drilling into the wall. I read the existing reviews on this items and have to concur. I removed and discarded the supplied tension springs because they required an insane amount of force to compress.I bought this drill guide as part of a bathroom remodel to make holes in the wall and floor for a pedestal sink. I felt much more safe pressing the base against the wall with my hand, which was awkward.It did in a pinch and was acceptable for the money, given that I do not foresee any immediate future need for it. The guide worked like a charm when drilling straight down into the floor.

I could have done much better without it. The vees were not deep enough to hold 1" stock securely, but it sort of worked. This was purchased specifically to put holes in round stock. However, the chuck was not centered over the vees, so holes were off position. In short, this will not deliver anything close to an accurate perpendicular hole in anything. The slide/chuck assembly has so much play it was not possible to hit a mark within +/- 1/4".

I would imagine with hole drilling it would be somewhat the same and a small drill bit may break. The drill bit does wobble a little bit on the rails since they are a little too small, so delicate work is not recommended. The drill guide worked just well enough for what I needed to do. I used it to drill some plugs for filling screw holes, and it worked as long as I did not drill too deep. If I had space I would buy a full-size drill press but attaching this to a piece of wood worked for now. If I let the bit get too far the play between the bit and the frame was enough that the bit broke the plug while drilling.

I used it with my Ryobi 110v and my Bosch LiOn, and it worked well each time. The chuck is fairly cheap and loosened once (I tightened it as tight as my fingers on the key allowed) but all in all, a good product that did the main thing I needed: allow me to drill holes that are highly perpendicular to the surface. The springs are a little stiff, but removable, which I considered but didn't do.

Every thing it was supposed to be. A great little handy aid in aligning your drill for a perfect job.