I do not write reviews for purchases from Revain but my experience with this jig set has led me to do so. I bought this light in July and immediately used it for a project. This worked decently, but the mount's dowel holes have too much play to drill precise holes. Regardless, it worked for what I needed. A few months later I received the lamp for the second time to use on a project. I lined up the mount properly, inserted the included drill, but as soon as I plugged in my brushless drill, the acrylic guide on top of the 3/8" mount broke completely, rendering it unusable. Throughout December and January I have tried to contact Powertec using the email address and phone numbers listed on their website https://powertecproducts.com with no response. I finally got through today, but a Powertec rep said this product was only covered by the 30-day warranty. A worthwhile tool shouldn't break the second time you use it, but it should have at least a year's warranty.