Review on Bosch HC6521 18 Inch Thru Hole Multi Cutter by Randy Montiel

Have been using Bosch tools for over 17 years. And this drill bit was used to drill concrete for HVAC installations. Unfortunately, this is the second bat to break in a year. It seems that Bosch has now reduced the metal quality of its products compared to before. It is interesting that the official representative of the company will answer this.