Review on Amartisan 40 200Mm Adjustable Recessed Speakers by Ken Reiff

I have 50 years of carpentry/repair experience. This tool is well made and has multiple pilot drill bits for different materials, including several carbide drill bits and several sets of different bits, all housed in a handy storage box. The center shaft/actuator has a spring to keep the clear acrylic cover in constant contact with the ceiling and the cover is secured to the shaft and spring with a mating nut. I had a mistake where I overtightened one of the cutters and almost ended up with a bigger hole than I would have liked. I also forgot to leave the lid on the ceiling until the dust fully settled.