BLACK DECKER MATRIX Trim Saw Attachment with 3-3/8 Inch Carbide Blade 24T (BDCMTTS)

Bught this saw for a single siding project that was done using ladders and an aluminum plank. I installed approximately 450 sf of cedar singles on three gabbel areas on my house. Teh work area was varied from 11 to 17 ft above the ground. Since I was working using two ladders and an expandable aluminum plank, I needed to cut various shingles to match the roof gabel. It took about 600 custome cut shingles at a 30 degree angle to match the roof. Each cut was somewhat different. At $450 per square for shingles, I didn’t want to make any mistakes and waste a shingle.I have numerious battery powered saws but all were large and heavy used primarily for stud lumber framing. I needed a single handed small lightweight battery powdered saw that would quickly cut 1/4″ shingles safely. I bought and returned a Ryobi and DeWalt 4″ saws becuase I had the batteries.I finally stumbled accross the Black & Decker mini saw attachment. Well I bought it and the requiured Matrix drill and battery. The total coast was less than $100 for all the items I needed. The saw worked better than I expectted except for one feature. When using the saw, I found I needed to use my trigger finger for the on/off trigger and my middle finger for the saw’s safety switch. It didn’t take me long to develope the muscle memory to first push the saftey switch with my middle finger align the saw then pull the power trigger. I was hoping that Once I attivated the saw, I could release the safety switch but unfortunately it didn’t work that way for me. The whole saw system was so light and manueverable that I could stand on the ladder, draw the cut line then make the cut standing on the ladder. I felt vary safe, never loosing my balance and making accurate cuts. While that may not sound like much but I’m almost 78 years old with back and balance issues.Two interesting facts have bee of interest. First, removing the drill attachment was actually very difficult becuase it seemed to be “stuck ” to the power pistol grip. It took a few friendly wacks on the drill side to “bust it loose”. The saw attached easil;y. Seondly, the directions to install the blade is buried in the user manual in a small portion of a page. It doesn’t state but the blade set screw is LEFT HAND thread not right hand thread.Once you discover that fact, blade installation and removeal is easy. Be sure to snug the screw up so the blade is attached soilidly to the drive plate.In summary, I’d buy the attachment again. It was the first Black & Decker tool I have bought in over 30 years. It works well and is holding to my useage.