Review on High Speed Woodworking Center Countersink - 3mm to 10mm by Tyler Born

This is a pretty good set for the money but the downside is that it's metric and requires rework to do the hard work. I have about 4 years experience in Europe to give you an idea of the dimensions but that's been quite a while in service. I've found that most of the time I just put the head of the screw next to the sink for comparison and mostly drill out successfully. Bits are adjustable in length and can be easily replaced if they break. A low collar would be a nice addition to the set.