Review on Bosch 84623M 4 Inch Tongue Bearing by Shawn Price

Agree with other reviewers over the years (visit the Bosch website in particular), it's confusing that Bosch sells this bit without enough spacers for the grooving tool to work. Otherwise it is difficult to control the cutting depth with this attachment. Everything else is pretty decent quality. I appreciate the 1/4" shank as most of these bits require a 1/2" socket.