
Customer Review
11 of 11 people found the following review helpful
By J. Bruha
Amazon Verified Purchase
I do farm maintanence, and part of my job, is fixing bin augers. These augers are driven from one end, by a hub that fits over the end of the shaft, that has a bolt that goes through, coupling everything together. What happens, is that every now and then something will work loose, start to wobble, and wear out the end of the auger shaft. The fix is simple, cut the bad part off the end of the auger shaft, bolt on an extension sleeve, re-connect everything, and go. The problem, is drilling a new hole in the end of the existing auger shaft. The hole must be square and centered, for everything to fit properly. This job used to mean that I had to pull the entire auger shaft out of the assembly (some of these are 20+ feet long, and weigh maybe 80 pounds), haul it to the shop, figure out a way to jig it up in the drill press, all to drill one hole. With this guide, all I have to do, is pull the shaft out far enough to gain clearance for the drill, clamp this to the shaft, and drill the hole. Turns a 3 or 4 hour job into one that takes less than one hour. While maybe not Space-Shuttle precise, it does VERY well, guiding the drill bit straight and square. Just be sure you have it clamped securely, so it can't wiggle.
The way it works, is very simple. This is a simple jig, that has a series of holes precisely drilled through it, which act as a guide for your drill bit. It is of hard enough steel, that the bits don't seem to be able to bite into it, and enlarge the holes. On the backside of the jig, a V-groove is machined, so that if you clamp it to a shaft or pipe, the jig is automatically centered, and squared to it. You are only limited to using it for the drill bit sizes on the jig, and in spaces where you can securely clamp it.... Read more ›

No comments:
Post a Comment