Review on 🔧 Bosch Daredevil DSBE1012 12 Inch Extension: The Ultimate Power Tool Accessory by David Norwood

I put 3 of these together to drill a hole through the rafters in the ceiling for the wiring. Worked very well. It connects to the bit with two set screws tightened with a hex wrench. Also used it as a wrench extension with my car drill. The only problem I had was that I had lost the set screw. They are sold at any good hardware store. The connection end has a relatively small diameter. Some of the others I looked at were a bit wider. They have worked well for me and I expect to use them many times.